Rename RAW_OUTPUT -> NO_COLOR

Also, if NO_COLOR is empty, output will be colored, otherwise not colored.

Signed-off-by: Rishikesh Nair <alienware505@gmail.com>

contrib/util/check-config.sh

@@ -21,9 +21,6 @@ binDir=$(dirname "$0")
 configFormat=gz
 isError=0
 
-# RAW_OUTPUT=1 disables colored outputs
-RAW_OUTPUT=${RAW_OUTPUT:-0}
-
 if [ $# -gt 0 ]; then
   CONFIG="$1"
 fi
@@ -58,6 +55,10 @@ is_set_as_module() {
 }
 
 color() {
+  if [[ -n "$NO_COLOR" ]]; then
+    return
+  fi
+
   codes=
   if [ "$1" = 'bold' ]; then
     codes=1
@@ -84,11 +85,6 @@ color() {
   printf '\033['"$codes"'m'
 }
 wrap_color() {
-  if [ $RAW_OUTPUT -eq 1 ]; then
-    echo -n "$1"
-    return
-  fi
-
   text="$1"
   shift
   color "$@"