tests: add tests for links with space in path and/or args

These tests tries to detect bad links in various pages. On the log page,
there currently exists links which are not properly escaped due to the
use of cgit_fileurl() when building the link. For now, this bug is simply
tagged as such.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

tests/t0101-index.sh

@@ -11,6 +11,7 @@ run_test 'find bar repo' 'grep -e "bar" trash/tmp'
 run_test 'find bar description' 'grep -e "the bar repo" trash/tmp'
 run_test 'find foo+bar repo' 'grep -e ">foo+bar<" trash/tmp'
 run_test 'verify foo+bar link' 'grep -e "/foo+bar/" trash/tmp'
+run_test 'verify "with%20space" link' 'grep -e "/with%20space/" trash/tmp'
 run_test 'no tree-link' '! grep -e "foo/tree" trash/tmp'
 run_test 'no log-link' '! grep -e "foo/log" trash/tmp'