[PATCH] checkpatch: Ignore email headers better

[Joe Perches]

There are some patches created by git format-patch
that when scanned by checkpatch report errors on
lines like

To:	address.tld

This is a checkpatch false positive.

Improve the logic a bit to ignore folded email headers
to avoid emitting these messages.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
 scripts/checkpatch.pl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd845b9..1e17de2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1637,7 +1637,7 @@ sub process {
 	my $signoff = 0;
 	my $is_patch = 0;
 
-	my $in_header_lines = 1;
+	my $in_header_lines = $file ? 0 : 1;
 	my $in_commit_log = 0;		#Scanning lines before patch
 
 	my $non_utf8_charset = 0;
@@ -1993,7 +1993,8 @@ sub process {
 # Check if it's the start of a commit log
 # (not a header line and we haven't seen the patch filename)
 		if ($in_header_lines && $realfile =~ /^$/ &&
-		    $rawline !~ /^(commit\b|from\b|[\w-]+:).+$/i) {
+		    !($rawline =~ /^\s+\S/ ||
+		      $rawline =~ /^(commit\b|from\b|[\w-]+:).*$/i)) {
 			$in_header_lines = 0;
 			$in_commit_log = 1;
 		}


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