update snapshots: add patch file header comments

Author: milahu

integration-tests/delete-scripts/__snapshots__/delete-scripts.test.ts.snap

@@ -2,6 +2,14 @@
 
 exports[`Test delete-scripts: a patch file got produced 1`] = `
 "SNAPSHOT: a patch file got produced
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package left-pad
+#
+# declared package:
+#   left-pad: file:/mocked/path/to/left-pad-1.3.0.tgz#5b8a3a7765dfe001261dde915589e782f8c94d1e
+#
 diff --git a/node_modules/left-pad/index.js b/node_modules/left-pad/index.js
 index e90aec3..f2b8b0a 100644
 --- a/node_modules/left-pad/index.js

integration-tests/file-mode-changes/__snapshots__/file-mode-changes.test.ts.snap

@@ -2,6 +2,14 @@
 
 exports[`Test file-mode-changes: the patch file 1`] = `
 "SNAPSHOT: the patch file
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package prettier
+#
+# declared package:
+#   prettier: file:/mocked/path/to/prettier-1.16.0.tgz#104dd25f5ee3d0c9d0a6ce4bb40ced8481d51219
+#
 diff --git a/node_modules/prettier/bin-prettier.js b/node_modules/prettier/bin-prettier.js
 old mode 100755
 new mode 100644

integration-tests/happy-path-npm/__snapshots__/happy-path-npm.test.ts.snap

@@ -17,6 +17,14 @@ END SNAPSHOT"
 
 exports[`Test happy-path-npm: the patch looks like this 1`] = `
 "SNAPSHOT: the patch looks like this
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package left-pad
+#
+# declared package:
+#   left-pad: file:/mocked/path/to/left-pad-1.1.3.tgz
+#
 diff --git a/node_modules/left-pad/index.js b/node_modules/left-pad/index.js
 index 26f73ff..d4cc4af 100644
 --- a/node_modules/left-pad/index.js

integration-tests/happy-path-yarn/__snapshots__/happy-path-yarn.test.ts.snap

@@ -17,6 +17,14 @@ END SNAPSHOT"
 
 exports[`Test happy-path-yarn: the patch looks like this 1`] = `
 "SNAPSHOT: the patch looks like this
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package left-pad
+#
+# declared package:
+#   left-pad: file:/mocked/path/to/left-pad-1.1.3.tgz#612f61c033f3a9e08e939f1caebeea41b6f3199a
+#
 diff --git a/node_modules/left-pad/index.js b/node_modules/left-pad/index.js
 index 26f73ff..b083802 100644
 --- a/node_modules/left-pad/index.js

integration-tests/ignore-whitespace/__snapshots__/ignore-whitespace.test.ts.snap

@@ -9,6 +9,14 @@ END SNAPSHOT"
 
 exports[`Test ignore-whitespace: line a changed 1`] = `
 "SNAPSHOT: line a changed
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package alphabet
+#
+# declared package:
+#   alphabet: file:/mocked/path/to/alphabet
+#
 diff --git a/node_modules/alphabet/index.js b/node_modules/alphabet/index.js
 index 7811d3b..454414b 100644
 --- a/node_modules/alphabet/index.js

integration-tests/ignores-scripts-when-making-patch/__snapshots__/ignores-scripts-when-making-patch.test.ts.snap

@@ -2,6 +2,14 @@
 
 exports[`Test ignores-scripts-when-making-patch: a patch file got produced 1`] = `
 "SNAPSHOT: a patch file got produced
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package naughty-package
+#
+# declared package:
+#   naughty-package: file:/mocked/path/to/naughty-package
+#
 diff --git a/node_modules/naughty-package/postinstall.sh b/node_modules/naughty-package/postinstall.sh
 index 3784520..c4af29c 100755
 --- a/node_modules/naughty-package/postinstall.sh

integration-tests/include-exclude-paths/__snapshots__/include-exclude-paths.test.ts.snap

@@ -2,6 +2,14 @@
 
 exports[`Test include-exclude-paths: exclude all but flip 1`] = `
 "SNAPSHOT: exclude all but flip
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package lodash --exclude '^(?!.*flip)'
+#
+# declared package:
+#   lodash: file:/mocked/path/to/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae
+#
 diff --git a/node_modules/lodash/flip.js b/node_modules/lodash/flip.js
 index c28dd78..584b377 100644
 --- a/node_modules/lodash/flip.js
@@ -17,6 +25,14 @@ END SNAPSHOT"
 
 exports[`Test include-exclude-paths: modified package.json 1`] = `
 "SNAPSHOT: modified package.json
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package lodash --exclude '^$'
+#
+# declared package:
+#   lodash: file:/mocked/path/to/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae
+#
 diff --git a/node_modules/lodash/package.json b/node_modules/lodash/package.json
 index 028960d..7d346f3 100644
 --- a/node_modules/lodash/package.json
@@ -35,6 +51,14 @@ END SNAPSHOT"
 
 exports[`Test include-exclude-paths: no base files 1`] = `
 "SNAPSHOT: no base files
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package lodash --exclude base
+#
+# declared package:
+#   lodash: file:/mocked/path/to/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae
+#
 diff --git a/node_modules/lodash/flip.js b/node_modules/lodash/flip.js
 index c28dd78..584b377 100644
 --- a/node_modules/lodash/flip.js
@@ -64,6 +88,14 @@ END SNAPSHOT"
 
 exports[`Test include-exclude-paths: only __.js being deleted 1`] = `
 "SNAPSHOT: only __.js being deleted
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package lodash --include __
+#
+# declared package:
+#   lodash: file:/mocked/path/to/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae
+#
 diff --git a/node_modules/lodash/fp/__.js b/node_modules/lodash/fp/__.js
 deleted file mode 100644
 index 4af98de..0000000
@@ -76,6 +108,14 @@ END SNAPSHOT"
 
 exports[`Test include-exclude-paths: only base files, no clone files 1`] = `
 "SNAPSHOT: only base files, no clone files
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package lodash --include base --exclude clone
+#
+# declared package:
+#   lodash: file:/mocked/path/to/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae
+#
 diff --git a/node_modules/lodash/_baseClamp.js b/node_modules/lodash/_baseClamp.js
 index a1c5692..c52e38e 100644
 --- a/node_modules/lodash/_baseClamp.js

integration-tests/lerna-canary/__snapshots__/lerna-canary.test.ts.snap

@@ -25,6 +25,14 @@ END SNAPSHOT"
 
 exports[`Test lerna-canary: the patch looks like this 1`] = `
 "SNAPSHOT: the patch looks like this
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package @parcel/codeframe
+#
+# declared package:
+#   @parcel/codeframe: file:/mocked/path/to/codeframe-2.0.0-nightly.137.tgz#b8bfc2ccf223d6a26eaad193fc26c029f7e14d4f
+#
 diff --git a/node_modules/@parcel/codeframe/src/codeframe.js b/node_modules/@parcel/codeframe/src/codeframe.js
 index 2bf2c1c..ef0695b 100644
 --- a/node_modules/@parcel/codeframe/src/codeframe.js

integration-tests/nested-packages/__snapshots__/nested-packages.test.ts.snap

@@ -25,6 +25,14 @@ END SNAPSHOT"
 
 exports[`Test nested-packages: the patch file contents 1`] = `
 "SNAPSHOT: the patch file contents
+# generated by patch-package 0.0.0 on 1980-01-01 00:00:00
+#
+# command:
+#   npx patch-package wrap-ansi/string-width
+#
+# declared package:
+#   string-width: file:/mocked/path/to/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e
+#
 diff --git a/node_modules/wrap-ansi/node_modules/string-width/index.js b/node_modules/wrap-ansi/node_modules/string-width/index.js
 index bbc49d2..6407f49 100644
 --- a/node_modules/wrap-ansi/node_modules/string-width/index.js