get_maintainer.pl: find maintainers for removed files

For removed files, get_maintainer.pl doesn't find any maintainers (besides
the default linux-kernel@vger.kernel.org), as it only looks at the "+++"
lines, which are "/dev/null" for removals.  Fix this by extending the
parsing to the "---" lines.

E.g. for the two line test patch below the real score maintainers will now
be found:

    --- a/arch/score/include/asm/dma-mapping.h
    +++ /dev/null

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 8b673dd4627fb20f4ab16a8af6de9524bd84a426..18d4ab55606bcb1ee41d2b7d0cb32afbf06163d9 100755 (executable)
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -433,7 +433,7 @@ foreach my $file (@ARGV) {
 
        while (<$patch>) {
            my $patch_line = $_;
-           if (m/^\+\+\+\s+(\S+)/) {
+           if (m/^\+\+\+\s+(\S+)/ or m/^---\s+(\S+)/) {
                my $filename = $1;
                $filename =~ s@^[^/]*/@@;
                $filename =~ s@\n@@;