scripts: objdiff: direct error messages to stderr

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>

diff --git a/scripts/objdiff b/scripts/objdiff
index b8f7fc6..cc67365 100755 (executable)
--- a/scripts/objdiff
+++ b/scripts/objdiff
@@ -28,17 +28,17 @@
 SRCTREE=$(git rev-parse --show-toplevel 2>/dev/null)
 
 if [ -z "$SRCTREE" ]; then
-       echo "ERROR: Not a git repository."
+       echo >&2 "ERROR: Not a git repository."
        exit 1
 fi
 
 TMPD=$SRCTREE/.tmp_objdiff
 
 usage() {
-       echo "Usage: $0 <command> <args>"
-       echo "  record    <list of object files>"
-       echo "  diff      <commitA> <commitB>"
-       echo "  clean     all | <commit>"
+       echo >&2 "Usage: $0 <command> <args>"
+       echo >&2 "  record    <list of object files>"
+       echo >&2 "  diff      <commitA> <commitB>"
+       echo >&2 "  clean     all | <commit>"
        exit 1
 }
 
@@ -88,12 +88,12 @@ dodiff() {
        DSTD="$TMPD/$DST"
 
        if [ ! -d "$SRCD" ]; then
-               echo "ERROR: $SRCD doesn't exist"
+               echo >&2 "ERROR: $SRCD doesn't exist"
                exit 1
        fi
 
        if [ ! -d "$DSTD" ]; then
-               echo "ERROR: $DSTD doesn't exist"
+               echo >&2 "ERROR: $DSTD doesn't exist"
                exit 1
        fi
 
@@ -112,7 +112,7 @@ doclean() {
                if [ -d "$TMPD/$CMT" ]; then
                        rm -rf $TMPD/$CMT
                else
-                       echo "$CMT not found"
+                       echo >&2 "$CMT not found"
                fi
        fi
 }
@@ -133,7 +133,7 @@ case "$1" in
                doclean $*
                ;;
        *)
-               echo "Unrecognized command '$1'"
+               echo >&2 "Unrecognized command '$1'"
                exit 1
                ;;
 esac