[libsigc++20] Use wildcards in .gitignore

[Kalev Lember]

commit e967b10b79bd57965c929f3dad29d42c8a804bd9
Author: Kalev Lember <kalevlember at gmail.com>
Date:   Mon Jul 25 19:11:10 2011 +0300

    Use wildcards in .gitignore

 .gitignore |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 68cf16c..e124765 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,2 @@
-libsigc++-2.2.4.2.tar.bz2
-/libsigc++-2.2.8.tar.bz2
-/libsigc++-2.2.9.tar.bz2
-/libsigc++-2.2.10.tar.xz
+/libsigc++-*.tar.bz2
+/libsigc++-*.tar.xz