Make licensecheck.pl case-inssentive for ISC licence.

third_party/devscripts/licensecheck.pl

Index: third_party/devscripts/licensecheck.pl
diff --git a/third_party/devscripts/licensecheck.pl b/third_party/devscripts/licensecheck.pl
index 6858362ee3784bb010a6d87b40ac68972109f535..ab47b80d83628a493b796bd1ec3d5b17e4dd1ade 100755
--- a/third_party/devscripts/licensecheck.pl
+++ b/third_party/devscripts/licensecheck.pl
@@ -458,7 +458,7 @@ sub parselicense($) {
 	$license = "University of Illinois/NCSA Open Source License (BSD like) $license";
     }
 
-    if ($licensetext  =~ /Permission to use, copy, modify, and(\/or)? distribute this software (and its documentation )?for any purpose (with or )?without fee is hereby granted, provided.*(copyright|entire) notice.*all copies/) {
+    if ($licensetext  =~ /Permission to use, copy, modify, and(\/or)? distribute this software (and its documentation )?for any purpose (with or )?without fee is hereby granted, provided.*(copyright|entire) notice.*all copies/i) {
 	$license = "ISC $license";
     }