ensure script is portable to non-GNU systems (bug #4509)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5948 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/build_tools/make_build_h b/build_tools/make_build_h
index fda1cea..1a62fc2 100755 (executable)
--- a/build_tools/make_build_h
+++ b/build_tools/make_build_h
@@ -4,7 +4,7 @@ KERNEL=`uname -r`
 MACHINE=`uname -m`
 OS=`uname -s`
 USER=`whoami`
-DATE=`date --utc "+%Y-%m-%d %H:%M:%S"`
+DATE=`date -u "+%Y-%m-%d %H:%M:%S"`
 cat << END
 /*
  * build.h