gitlint: ignore "Fixes" lines

Since these repeat commit titles, they can get longer than the
configured body line length. So just ignore them.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

.gitlint

@@ -9,8 +9,8 @@ line-length=72
 
 [ignore-body-lines]
 # Ignore HTTP reference links
-# Ignore lines that start with 'Co-Authored-By' or with 'Signed-off-by'
-regex=(^\[.+\]: http.+)|(^Co-Authored-By)|(^Signed-off-by)
+# Ignore lines that start with 'Co-Authored-By', with 'Signed-off-by' or with 'Fixes'
+regex=(^\[.+\]: http.+)|(^Co-Authored-By)|(^Signed-off-by)|(^Fixes:)
 
 [ignore-by-author-name]
 # Ignore certain rules for commits of which the author name matches a regex