Add .dirstamp to the list of ignored files.

This seems to be generated by recent versions of automake. It isn't
an issue if you use a separate build directory, but not everyone
does that.

(cherry picked from commit 0858cdddc793a6116c94332acbfd0c5538a1e462)

diff --git a/.gitignore b/.gitignore
index 09ea96fc10b4b17a20f81637ce97cba7bea0058f..30d182d0a55dc6defdca8e9641f1797ec0c86875 100644 (file)
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ stamp-h1
 *.patch
 build/
 CMakeLists.txt.user
+.dirstamp