fixed memory leak in user_options_check_files()

[matrix]

==37917== 1,792 bytes in 14 blocks are definitely lost in loss record 409 of 425
==37917==    at 0x100272086: malloc (in /usr/local/Cellar/valgrind/3.16.1/lib/valgrind/vgpreload_memcheck-amd64-darwin.so)
==37917==    by 0x10071139E: _vasprintf (in /usr/lib/system/libsystem_c.dylib)
==37917==    by 0x1000663FB: hc_asprintf (shared.c:264)
==37917==    by 0x100080212: user_options_check_files (user_options.c:2957)
==37917==    by 0x10003C599: hashcat_session_init (hashcat.c:1104)
==37917==    by 0x100000D20: main (main.c:1157)

[jsteube]

OK, I understand the need for the both free() to fix the issue, but why replace the asprintf() with snprintf(). Is valgrind still reporting the issue after only adding the both free()?

[matrix]

OK, I understand the need for the both free() to fix the issue, but why replace the asprintf() with snprintf(). Is valgrind still reporting the issue after only adding the both free()?

Hi, I don't remember it honestly, I should try again

[jsteube]

Implemented with 5d7dc3c