push: free_refs() the "local_refs" in set_refspecs()

Fix a memory leak that's been with us since this code was added in
ca02465b41 (push: use remote.$name.push as a refmap, 2013-12-03).

The "remote = remote_get(...)" added in the same commit would seem to
leak based only on the context here, but that function is a wrapper
for sticking the remotes we fetch into "the_repository->remote_state".

See fd3cb0501e (remote: move static variables into per-repository
struct, 2021-11-17) for the addition of code in repository.c that
free's the "remote" allocated here.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/push.c

@@ -134,6 +134,7 @@ static void set_refspecs(const char **refs, int nr, const char *repo)
 		} else
 			refspec_append(&rs, ref);
 	}
+	free_refs(local_refs);
 }
 
 static int push_url_of_remote(struct remote *remote, const char ***url_p)

t/t1416-ref-transaction-hooks.sh

@@ -5,6 +5,7 @@ test_description='reference transaction hooks'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success setup '

t/t2402-worktree-list.sh

@@ -5,6 +5,7 @@ test_description='test git worktree list'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup' '

t/t5504-fetch-receive-strict.sh

@@ -4,6 +4,7 @@ test_description='fetch/receive strict mode'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup and inject "corrupt or missing" object' '

t/t5523-push-upstream.sh

@@ -4,6 +4,7 @@ test_description='push with --set-upstream'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-terminal.sh
 

t/t5529-push-errors.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='detect some push errors early (before contacting remote)'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup commits' '

t/t5546-receive-limits.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='check receive input limits'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Let's run tests with different unpack limits: 1 and 10000

t/t5547-push-quarantine.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='check quarantine of objects during push'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'create picky dest repo' '

t/t5606-clone-options.sh

@@ -4,6 +4,7 @@ test_description='basic clone options'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup' '

t/t5810-proto-disable-local.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='test disabling of local paths in clone/fetch'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY/lib-proto-disable.sh"
 

t/t5813-proto-disable-ssh.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='test disabling of git-over-ssh in clone/fetch'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY/lib-proto-disable.sh"
 

t/t7409-submodule-detached-work-tree.sh

@@ -13,6 +13,7 @@ TEST_NO_CREATE_REPO=1
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup' '

t/t7416-submodule-dash-url.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='check handling of disallowed .gitmodule urls'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup' '

t/t7450-bad-git-dotfiles.sh

@@ -12,6 +12,8 @@ Such as:
 
   - symlinked .gitmodules, etc
 '
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-pack.sh