autogen.sh: print errors to stderr, printf instead echo -n

Signed-off-by: Petr Vorel <petr.vorel@gmail.com>

diff --git a/autogen.sh b/autogen.sh
index 5ec9a5a..7f97668 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -15,8 +15,8 @@ PKG_NAME=NetworkManager
 
 (test -f $srcdir/configure.ac \
   && test -f $srcdir/src/main.c) || {
-    echo -n "**Error**: Directory "\`$srcdir\'" does not look like the"
-    echo " top-level $PKG_NAME directory"
+    printf "**Error**: Directory "\`$srcdir\'" does not look like the" >&2
+    echo " top-level $PKG_NAME directory" >&2
     exit 1
 }