[PATCH] get_maintainers.pl: Follow renames when looking up commitsigners

[Ian Campbell]

I happen to have had a commit to various network drivers since the big
renaming/reorg which happened to drivers/net recently. This means that I
now appear to be in the top few commit signers (by %age) for many of
them so am getting sent all sorts of stuff and people who are involved
with the driver are not. e.g. (to pick one at random):

        $ ./scripts/get_maintainer.pl -f drivers/net/ethernet/nvidia/forcedeth.c
        "David S. Miller" <davem@xxxxxxxxxxxxx> (commit_signer:5/7=71%)
        Ian Campbell <ian.campbell@xxxxxxxxxx> (commit_signer:2/7=29%)
        Eric Dumazet <eric.dumazet@xxxxxxxxx> (commit_signer:1/7=14%)
        Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx> (commit_signer:1/7=14%)
        Jiri Pirko <jpirko@xxxxxxxxxx> (commit_signer:1/7=14%)
        netdev@xxxxxxxxxxxxxxx (open list:NETWORKING DRIVERS)
        linux-kernel@xxxxxxxxxxxxxxx (open list)

With the following patch the renames are followed and the result appears
much more sensible:

        $ ./scripts/get_maintainer.pl -f drivers/net/ethernet/nvidia/forcedeth.c
        "David S. Miller" <davem@xxxxxxxxxxxxx> (commit_signer:31/34=91%)
        Joe Perches <joe@xxxxxxxxxxx> (commit_signer:11/34=32%)
        Szymon Janc <szymon@xxxxxxxxxxx> (commit_signer:5/34=15%)
        Jiri Pirko <jpirko@xxxxxxxxxx> (commit_signer:3/34=9%)
        Paul <paul.gortmaker@xxxxxxxxxxxxx> (commit_signer:2/34=6%)
        netdev@xxxxxxxxxxxxxxx (open list:NETWORKING DRIVERS)
        linux-kernel@xxxxxxxxxxxxxxx (open list)
        
Signed-off-by: Ian.Campbell@xxxxxxxxxx

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 4594f33..f32a04c 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -95,7 +95,7 @@ my %VCS_cmds_git = (
     "execute_cmd" => \&git_execute_cmd,
     "available" => '(which("git") ne "") && (-d ".git")',
     "find_signers_cmd" =>
-	"git log --no-color --since=\$email_git_since " .
+	"git log --no-color --follow --since=\$email_git_since " .
 	    '--format="GitCommit: %H%n' .
 		      'GitAuthor: %an <%ae>%n' .
 		      'GitDate: %aD%n' .


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