bash prompt: don't use '+=' operator in show upstream code path

szeder · gitster · commit 52ec889d1ab3 · 2013-10-15T14:20:37.000-07:00
The '+=' operator is not supported by old Bash versions (3.0) we still
care about.

Signed-off-by: SZEDER Gábor &lt;szeder@ira.uka.de&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
@@ -110,7 +110,7 @@ __git_ps1_show_upstream ()
 			;;
 		svn-remote.*.url)
 			svn_remote[$((${#svn_remote[@]} + 1))]="$value"
-			svn_url_pattern+="\\|$value"
+			svn_url_pattern="$svn_url_pattern\\|$value"
 			upstream=svn+git # default upstream is SVN if available, else git
 			;;
 		esac
