git-gui: accept versions containing text annotations, like 1.5.3.mingw.1

diff --git a/git-gui.sh b/git-gui.sh
index cf88a0d8247e8578e5740d290ee1e72b011f2fe2..9335a9761b458f5e8d75abf342630672751c7f2a 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -538,6 +538,7 @@ regsub -- {-dirty$} $_git_version {} _git_version
 regsub {\.[0-9]+\.g[0-9a-f]+$} $_git_version {} _git_version
 regsub {\.rc[0-9]+$} $_git_version {} _git_version
 regsub {\.GIT$} $_git_version {} _git_version
+regsub {\.[a-zA-Z]+\.[0-9]+$} $_git_version {} _git_version
 
 if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
        catch {wm withdraw .}