test: Fix prop224 hs unit tests
Two things right now on master. One test is failing on Windows:
hs_common/build_address: [forking]
FAIL ../tor/src/test/test_hs_common.c:81: assert(path OP_EQ "/double/five/squared"): </double/five\squared> vs </double/five/squared>
The second thing is a memory leak:
hs_common/desc_responsible_hsdirs: [forking]
=================================================================
==13053==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 6 byte(s) in 1 object(s) allocated from:
#0 0x7f376cdaae80 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc6e80)
#1 0x7f376ac577c9 in __strdup (/lib/x86_64-linux-gnu/libc.so.6+0x8d7c9)