[Bugfix] Fix #425

[ChunYen-Chen]

Solve #425.
Thank you, @salmanhiro and @technic960183, for identifying this issue. Thank you, @vivi235711 for your help.

Reproduce the issue with the error message

1. Compile gamer with AddressSanitizer (ASan) flags
2. Run gamer

Error message

==58858==ERROR: AddressSanitizer: global-buffer-overflow on address 0x00010259625c at pc 0x00010b4ef33d bp 0x0003089dd110 sp 0x0003089dc8c0
WRITE of size 512 at 0x00010259625c thread T0
    #0 0x00010b4ef33c in strncpy+0x4cc (libclang_rt.asan_osx_dynamic.dylib:x86_64+0x4e33c)
    #1 0x0001021b7ca7 in ReadPara_t::Read(char const*) ReadPara.h:290
    #2 0x0001021affcf in Init_Load_Parameter() Init_Load_Parameter.cpp:626
    #3 0x0001021a8708 in Init_GAMER(int*, char***) Init_GAMER.cpp:38
    #4 0x0001020802e8 in main Main.cpp:614
    #5 0x00020283e2cc  ()

0x00010259625c is located 0 bytes after global variable 'OUTPUT_DIR' defined in 'Main/Main.cpp' (0x0001025960c0) of size 412
SUMMARY: AddressSanitizer: global-buffer-overflow ReadPara.h:290 in ReadPara_t::Read(char const*)
Shadow bytes around the buggy address:
  0x000102595f80: 00 f9 f9 f9 00 f9 f9 f9 00 f9 f9 f9 00 f9 f9 f9
  0x000102596000: 00 f9 f9 f9 00 f9 f9 f9 04 f9 f9 f9 00 f9 f9 f9
  0x000102596080: 00 f9 f9 f9 00 f9 f9 f9 00 00 00 00 00 00 00 00
  0x000102596100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x000102596180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x000102596200: 00 00 00 00 00 00 00 00 00 00 00[04]f9 f9 f9 f9
  0x000102596280: f9 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 00 f9 f9 f9
  0x000102596300: 00 f9 f9 f9 00 f9 f9 f9 00 f9 f9 f9 00 f9 f9 f9
  0x000102596380: 04 f9 f9 f9 04 f9 f9 f9 04 f9 f9 f9 04 f9 f9 f9
  0x000102596400: 04 f9 f9 f9 04 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9
  0x000102596480: 04 f9 f9 f9 04 f9 f9 f9 04 f9 f9 f9 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==58858==ABORTING
zsh: abort      ./gamer

How to fix

1. Declare the length of OUTPUT_DIR as MAX_STRING
2. If the code uses sprintf() with OUTPUT_DIR, I append the destination string length to 2*MAX_STRING.

[hyschive]

@ChunYen-Chen Thanks for the prompt fix!