Make sure /sbin is in the user's path.

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1939 7894878c-1315-0410-8ee3-d5d059ff63e0

prog/detect/sensors-detect

@@ -31,6 +31,11 @@ use strict;
 use Fcntl;
 use POSIX;
 
+# Just in case a root user doesn't have /sbin in his/her path for some reason
+# (was seen once)
+$ENV{PATH} .= '/sbin:'
+	unless $ENV{PATH} =~ m,(^|:)/sbin/?(:|$),;
+
 #########################
 # CONSTANT DECLARATIONS #
 #########################