geninfo: Fix accounting of basic blocks in exceptional paths

Basic blocks that are not executed and are only reachable via
exceptional paths are marked with a '%%%%%' marker in the GCOV output of
current GCC versions. Fix geninfo to also recognize this marker.

Signed-off-by: Peter Oberparleiter <[email protected]>
Reported-by: trotux (github user)

Author: oberpar

bin/geninfo

@@ -1901,7 +1901,7 @@ sub read_gcov_file($)
 			# Also remove CR from line-end
 			s/\015$//;
 
-			if (/^\s*(\d+|\$+):\s*(\d+)-block\s+(\d+)\s*$/) {
+			if (/^\s*(\d+|\$+|\%+):\s*(\d+)-block\s+(\d+)\s*$/) {
 				# Block information - used to group related
 				# branches
 				$last_line = $2;