Improve pull output, inspired by `zimfw update`

dup

@@ -48,10 +48,15 @@ function do_pull_maybe_quiet() {
     name="$1"
     dir="${2:-$name}"
 	git_out="$(do_pull $dir)"
-    if [[ "$quiet" != true || "$git_out" != "Already up to date." ]]
+    first_line="${git_out%%$'\n'*}"
+    if [[ "$quiet" != true || "$first_line" != "Already up to date." ]]
     then
-        echo "Updating $name"
-        echo "$git_out"
+        echo "$(tput setaf 4)}$(tput sgr0) $(tput bold)$name$(tput sgr0): $first_line"
+    fi
+    if [[ $first_line == Updating* ]]
+    then
+        git -C "${dir}" log --graph --color --format='%C(yellow)%h%C(reset) %s %C(cyan)(%cr)%C(reset)' ${first_line##Updating } \
+            | sed 's/^/  /'
     fi
 }