Subject: bug#37934: makefile colors messed up by ://

From: 積丹尼 Dan Jacobson <[email-masked]>
Date: Sat, 26 Oct 2019 19:45:37 +0800

$ cat makefile
x:
	echo This line is the correct color.
	echo This line is not. Because it contains the string file:// in it.
$ emacs -nw -Q makefile
emacs-version "26.3"