* admin/automerge: Fix quoting of some variables.

admin/automerge

@@ -37,7 +37,7 @@
 
 die ()                 # write error to stderr and exit
 {
-    [ $# -gt 0 ] && echo "$PN: $@" >&2
+    [ $# -gt 0 ] && echo "$PN: $*" >&2
     exit 1
 }
 
@@ -133,7 +133,7 @@ else
     tempfile=/tmp/$PN.$$
 fi
 
-trap "rm -f $tempfile 2> /dev/null" EXIT
+trap 'rm -f $tempfile 2> /dev/null' EXIT
 
 
 [ -e Makefile ] && [ "$build" ] && {
@@ -153,7 +153,7 @@ trap "rm -f $tempfile 2> /dev/null" EXIT
 
 rev=$(git rev-parse HEAD)
 
-[ $(git rev-parse @{u}) = $rev ] || die "Local state does not match origin"
+[ "$(git rev-parse @{u})" = "$rev" ] || die "Local state does not match origin"
 
 
 merge ()
@@ -162,12 +162,12 @@ merge ()
 
     if $emacs --batch -Q -l ./admin/gitmerge.el \
               --eval "(setq gitmerge-minimum-missing $nmin)" -f gitmerge \
-              >| $tempfile 2>&1; then
+              >| "$tempfile" 2>&1; then
         echo "merged ok"
         return 0
 
     else
-        grep -E "Nothing to merge|Number of missing commits" $tempfile && \
+        grep -E "Nothing to merge|Number of missing commits" "$tempfile" && \
             exit 0
 
         cat "$tempfile" 1>&2
@@ -191,13 +191,13 @@ git diff --stat --cached origin/master | grep -q "etc/NEWS " && \
 
 echo "Running autoreconf..."
 
-autoreconf -i -I m4 2>| $tempfile
+autoreconf -i -I m4 2>| "$tempfile"
 
 retval=$?
 
 ## Annoyingly, autoreconf puts the "installing `./foo' messages on stderr.
 if [ "$quiet" ]; then
-    grep -v 'installing `\.' $tempfile 1>&2
+    grep -v 'installing `\.' "$tempfile" 1>&2
 else
     cat "$tempfile" 1>&2
 fi
@@ -236,7 +236,7 @@ echo "Tests finished ok"
 echo "Checking for remote changes..."
 git fetch || die "fetch error"
 
-[ $(git rev-parse @{u}) = $rev ] || {
+[ "$(git rev-parse @{u})" = "$rev" ] || {
 
     echo "Upstream has changed"
 
@@ -245,7 +245,7 @@ git fetch || die "fetch error"
     ## Ref eg https://lists.gnu.org/r/emacs-devel/2014-12/msg01435.html
     ## Instead, we throw away what we just did, and do the merge again.
     echo "Resetting..."
-    git reset --hard $rev
+    git reset --hard "$rev"
 
     echo "Pulling..."
     git pull --ff-only || die "pull error"