Updated for tab vs. space.

Author: Tony Sansone

Makefile

@@ -1,9 +1,11 @@
-if [-z "${GIT_BRANCH}"]
-  GIT_BRANCH=`$(shell git rev-parse --abbrev-ref HEAD)`
-fi
-if [-z "${USER}"]
-  USER=`whoami`
-fi
+ifeq($(GIT_BRANCH), "")
+	GIT_BRANCH=`$(shell git rev-parse --abbrev-ref HEAD)`
+endif
+
+ifeq($(USER), "")
+	USER=`whoami`
+endif
+
 STAGING_URL="https://docs-mongodborg-staging.corp.mongodb.com"
 PRODUCTION_URL="https://docs.mongodb.com"
 STAGING_BUCKET=docs-mongodb-org-staging