Merge branch 'ep/use-git-trace-curl-in-tests' into maint

Update a few tests that used to use GIT_CURL_VERBOSE to use the
newer GIT_TRACE_CURL.

* ep/use-git-trace-curl-in-tests:
t5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var
t5550-http-fetch-dumb.sh: use the GIT_TRACE_CURL environment var
test-lib.sh: preserve GIT_TRACE_CURL from the environment
t5541-http-push-smart.sh: use the GIT_TRACE_CURL environment var

diff --combined t/test-lib.sh
index eada492d884a2558ff81aa6731db727c4cac3f8a,986eba1d00356437fd5ae7a6514fbb7c1b17653e..ac56512a1c5e4fde4af33cedcbb1cab11487d29a
--- 1/t/test-lib.sh
--- 2/t/test-lib.sh
+++ b/t/test-lib.sh
@@@ -89,6 -89,7 +89,7 @@@ unset VISUAL EMAIL LANGUAGE COLUMNS $("
                UNZIP
                PERF_
                CURL_VERBOSE
+               TRACE_CURL
        ));
        my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
        print join("\n", @vars);
@@@ -687,9 -688,9 +688,9 @@@ test_done () 
                test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
                mkdir -p "$test_results_dir"
                base=${0##*/}
 -              test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 +              test_results_path="$test_results_dir/${base%.sh}.counts"
  
 -              cat >>"$test_results_path" <<-EOF
 +              cat >"$test_results_path" <<-EOF
                total $test_count
                success $test_success
                fixed $test_fixed