[PATCH] checkpatch: Add spell checking of email subject line

[Joe Perches]

Only commit log and patch additions are checked for
typos and spelling errors currently.  Add a check
of the email subject line too.

Suggested-by: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
 scripts/checkpatch.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 421bbb4..c061a63 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2303,7 +2303,8 @@ sub process {
 		}
 
 # Check for various typo / spelling mistakes
-		if (defined($misspellings) && ($in_commit_log || $line =~ /^\+/)) {
+		if (defined($misspellings) &&
+		    ($in_commit_log || $line =~ /^(?:\+|Subject:)/i)) {
 			while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:$|[^a-z@])/gi) {
 				my $typo = $1;
 				my $typo_fix = $spelling_fix{lc($typo)};


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