Fall throught git_default_config when reading config to update the
comment_line_char from default '#' to possible different value set in
core.commentChar.

Signed-off-by: Rafal Klys <[email protected]>
---

Added fallthru instead of reading config third time.

Added test, updated commit message.

I even tried to change that to only one pass, but looks like it would require a
bit more coding, so maybe next time.

Thanks for feedback, I'm impressed that contributing to Git is so easy for
newbies (never sent a patch via email before!) and that the response is so
quick.

 t/t7513-interpret-trailers.sh | 30 ++++++++++++++++++++++++++++++
 trailer.c                     |  3 ++-
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/t/t7513-interpret-trailers.sh b/t/t7513-interpret-trailers.sh
index aee785c..e6f9d8e 100755
--- a/t/t7513-interpret-trailers.sh
+++ b/t/t7513-interpret-trailers.sh
@@ -267,6 +267,36 @@ test_expect_success 'with message that has comments' '
        test_cmp expected actual
 '
 
+test_expect_success 'with message that has comments using non-default 
core.commentChar' '
+       git config core.commentChar x &&
+       test_when_finished "git config --unset core.commentChar" &&
+       cat basic_message >message_with_comments &&
+       sed -e "s/ Z\$/ /" >>message_with_comments <<-\EOF &&
+               x comment
+
+               x other comment
+               Cc: Z
+               x yet another comment
+               Reviewed-by: Johan
+               Reviewed-by: Z
+               x last comment
+
+       EOF
+       cat basic_patch >>message_with_comments &&
+       cat basic_message >expected &&
+       cat >>expected <<-\EOF &&
+               x comment
+
+               Reviewed-by: Johan
+               Cc: Peff
+               x last comment
+
+       EOF
+       cat basic_patch >>expected &&
+       git interpret-trailers --trim-empty --trailer "Cc: Peff" 
message_with_comments >actual &&
+       test_cmp expected actual
+'
+
 test_expect_success 'with message that has an old style conflict block' '
        cat basic_message >message_with_comments &&
        sed -e "s/ Z\$/ /" >>message_with_comments <<-\EOF &&
diff --git a/trailer.c b/trailer.c
index 8e48a5c..2ec0883 100644
--- a/trailer.c
+++ b/trailer.c
@@ -483,7 +483,8 @@ static int git_trailer_default_config(const char *conf_key, 
const char *value, v
        const char *trailer_item, *variable_name;
 
        if (!skip_prefix(conf_key, "trailer.", &trailer_item))
-               return 0;
+               /* for core.commentChar */
+               return git_default_config(conf_key, value, cb);
 
        variable_name = strrchr(trailer_item, '.');
        if (!variable_name) {
-- 
2.8.1.69.g6de72cc

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