xfsqa 165 - fails if environment LANG != C

Merge of master-melb:xfs-cmds:30992a by kenmcd.

  export the language that all tests will run under to prevent
  language settings from affecting test output and giving
  spurious failures when comparing against golden output.

common.config

@@ -32,6 +32,10 @@
 #   validity or mountedness.
 #
 
+# all tests should use a common language setting to prevent golden
+# output mismatches.
+export LANG=C
+
 # Warning: don't put freeware before /usr/bsd on IRIX coz you'll
 #  get the wrong hostname and set your system name to -s  :)
 [ -d /usr/bsd ] && PATH=$PATH:/usr/bsd