fix git-info-2.sh: do not display pgp signature in log (if enabled by default)

template/.ci/git-info-2.sh

@@ -11,7 +11,7 @@ FIRSTTAG=$(git describe --tags --always --dirty='-*' 2>/dev/null)
 # Get the first tag in history that looks like a Release
 RELTAG=$(git describe --tags --long --always --dirty='-*' --match '[0-9]*.*' 2>/dev/null)
 # Hoover up the metadata
-git --no-pager log -1 --date=short --decorate=short \
+git -c log.showSignature=false --no-pager log -1 --date=short --decorate=short \
     --pretty=format:"\usepackage[%
         shash={%h},
         lhash={%H},