Update libmagic patch

This syncs the libmagic (file library) patch with recent changes:

- Remove HAVE_SIGNAL_H from libmagic

  Following left over since 5f89157

  This syncs also libmagic patch with proper fixes of whitespaces errors,
  versions, line numbers, etc.

- Remove HAVE_LOCALE_H check

  This was removed via e06836a and
  file library update 622b10f.

- Remove HAVE_STRERROR

  Already removed via e6a6017 and
  in the libmagic 5.37.

Author: petk

configure.ac

@@ -435,13 +435,11 @@ grp.h \
 ieeefp.h \
 langinfo.h \
 limits.h \
-locale.h \
 monetary.h \
 netdb.h \
 poll.h \
 pwd.h \
 resolv.h \
-signal.h \
 syslog.h \
 sysexits.h \
 sys/ioctl.h \
@@ -643,7 +641,6 @@ std_syslog \
 strcasecmp \
 strcoll \
 strdup \
-strerror \
 strnlen \
 strptime \
 strtok_r \

ext/fileinfo/generate_patch.sh

@@ -1,4 +1,4 @@
-VERSION=5.33
+VERSION=5.37
 if [[ ! -d libmagic.orig ]]; then
   mkdir libmagic.orig
   wget -O - ftp://ftp.astron.com/pub/file/file-$VERSION.tar.gz \