stackrc set the LC_ALL to C

It will report 'unknown locale: UTF-8', when the env is UTF-8.
Default set the LC_ALL to C in the stackrc, instead. And delete
the duplicate option in stack.sh.

Closes-Bug: 1499296

Change-Id: I14121b25ac314a1a93e6dd6811e196ce2a7c0eb5

stack.sh

@@ -28,13 +28,6 @@ set -o xtrace
 # Make sure custom grep options don't get in the way
 unset GREP_OPTIONS
 
-# Sanitize language settings to avoid commands bailing out
-# with "unsupported locale setting" errors.
-unset LANG
-unset LANGUAGE
-LC_ALL=C
-export LC_ALL
-
 # Make sure umask is sane
 umask 022
 

stackrc

@@ -7,6 +7,13 @@
 [[ -z "$_DEVSTACK_STACKRC" ]] || return 0
 declare -r _DEVSTACK_STACKRC=1
 
+# Sanitize language settings to avoid commands bailing out
+# with "unsupported locale setting" errors.
+unset LANG
+unset LANGUAGE
+LC_ALL=C
+export LC_ALL
+
 # Find the other rc files
 RC_DIR=$(cd $(dirname "${BASH_SOURCE:-$0}") && pwd)