prevent double single quotes for default cfg vars

Author: H.Merijn Brand

Porting/checkcfgvar.pl

@@ -34,6 +34,8 @@ sub usage
     "tap"	=> \$tap,
     ) or usage (1);
 
+$default and $default =~ s/^'(.*)'$/$1/; # Will be quoted on generation
+
 require 'regen/regen_lib.pl' if $opt_r;
 
 my $MASTER_CFG = "config_h.SH";

uconfig.h

@@ -4724,5 +4724,5 @@
 
 /* Generated from:
  * 06dae33599ea14bee0e39e3b22e1f685aaae36422af2c567dc1de19203950835 config_h.SH
- * a350679952164b71c20f5b09afd8c2ffe982e97dddffa15031edc7584b357796 uconfig.sh
+ * 6859e7550b3ae0da512f0a8b99762af72df599ab734520206d7b3574459e948f uconfig.sh
  * ex: set ro: */