doc: fix t0450-txt-doc-vs-help to select only first synopsis block

In case there are multiple synopsis blocks (declared with [synopsis]
or [verse] style) in the same file, the previous implementation was
incorrectly picking up text from all the blocks until the first empty
line. This commit modifies the sed command to stop processing upon
encountering the first empty line after the first block declaration,
thereby ensuring that only the intended block is captured.

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t0450-txt-doc-vs-help.sh b/t/t0450-txt-doc-vs-help.sh
index e12e18f97f02eb3c6827389a0e69ffd562bc4737..822b0d55a50ae7e600fca13a1c3a7b4b21ed6913 100755 (executable)
--- a/t/t0450-txt-doc-vs-help.sh
+++ b/t/t0450-txt-doc-vs-help.sh
@@ -56,7 +56,7 @@ adoc_to_synopsis () {
        b2t="$(builtin_to_adoc "$builtin")" &&
        sed -n \
                -E '/^\[(verse|synopsis)\]$/,/^$/ {
-                       /^$/d;
+                       /^$/q;
                        /^\[(verse|synopsis)\]$/d;
                        s/\{litdd\}/--/g;
                        s/'\''(git[ a-z-]*)'\''/\1/g;