Re: [PATCH] mergetool: Provide an empty file when no base exists

David Aguilar [off-list ref] writes:

+    if base_present; then
+	checkout_staged_file 1 "$MERGED" "$BASE"
+    else
+	:>"$BASE"

Just a style, but please write this as either one of the following:

	>"$BASE"
        : >"$BASE"

I tend to prefer the former, but if you have to write a command, we want
to see a SP before the redirection (and no SP before the redirect target).

+    fi
     local_present  && checkout_staged_file 2 "$MERGED" "$LOCAL"
     remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE"

Sorry to be ping-pong-ing like this, but wouldn't we have a similar issue
when LOCAL or REMOTE does not exist (e.g. "they modified, we removed")?