Always use 7 hex characters when describing

Some users (like me) override this in their .gitconfig

diff --git a/version-gen.sh b/version-gen.sh
index 08c6fef..52f04e6 100755 (executable)
--- a/version-gen.sh
+++ b/version-gen.sh
@@ -2,7 +2,7 @@
 
 DEFAULT_VERSION="5.5.0.git"
 
-VERSION="`git describe --dirty=+ 2> /dev/null | grep collectd | sed -e 's/^collectd-//'`"
+VERSION="`git describe --dirty=+ --abbrev=7 2> /dev/null | grep collectd | sed -e 's/^collectd-//'`"
 
 if test -z "$VERSION"; then
        VERSION="$DEFAULT_VERSION"