added note about the low precedence of shell to config.def.h - st

commit 1d348e98e3745ef98bf9fa36119ead6294c6c80b
parent 62756fdb4945a80f4a53e6d354d5d93f51035517
Author: Mytchel Hammond <mytchel@openmailbox.org>
Date:   Fri, 24 Jul 2015 17:58:18 +1200

added note about the low precedence of shell to config.def.h

Diffstat:
M config.def.h  | 9 +++++++++

1 file changed, 9 insertions(+), 0 deletions(-)
diff --git a/config.def.h b/config.def.h
@@ -7,6 +7,15 @@
  */
 static char font[] = "Liberation Mono:pixelsize=12:antialias=false:autohint=false";
 static int borderpx = 2;
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: utmp option
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
 static char shell[] = "/bin/sh";
 static char *utmp = NULL;
 static char stty_args[] = "stty raw -echo -iexten echonl";