Merge branch 'ah/chainlint-cpuinfo-parse-fix'

The format of a line in /proc/cpuinfo that describes a CPU on s390x
looked different from everybody else, and the code in chainlint.pl
failed to parse it.

* ah/chainlint-cpuinfo-parse-fix:
  chainlint.pl: fix /proc/cpuinfo regexp

Author: gitster

t/chainlint.pl

@@ -709,7 +709,7 @@ sub ncores {
 	# Windows
 	return $ENV{NUMBER_OF_PROCESSORS} if exists($ENV{NUMBER_OF_PROCESSORS});
 	# Linux / MSYS2 / Cygwin / WSL
-	do { local @ARGV='/proc/cpuinfo'; return scalar(grep(/^processor\s*:/, <>)); } if -r '/proc/cpuinfo';
+	do { local @ARGV='/proc/cpuinfo'; return scalar(grep(/^processor[\s\d]*:/, <>)); } if -r '/proc/cpuinfo';
 	# macOS & BSD
 	return qx/sysctl -n hw.ncpu/ if $^O =~ /(?:^darwin$|bsd)/;
 	return 1;