Silenced erroneous "git: not found" printout on solaris.

otp_build

@@ -1,20 +1,20 @@
 #! /bin/sh
 #
 # %CopyrightBegin%
-#
+# 
 # Copyright Ericsson AB 2002-2010. All Rights Reserved.
-#
+# 
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-#
+# 
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-#
+# 
 # %CopyrightEnd%
 #
 
@@ -169,7 +169,7 @@ determine_version_controller ()
     # for the "otp_build" file being a Clearcase controlled
     # object.
 
-    if git rev-parse --git-dir 2>/dev/null >/dev/null; then
+    if { git rev-parse --git-dir; } 2>/dev/null >/dev/null; then
 	version_controller=git
     else
 	if test -d "otp_build@@/"; then