gcc 10.1.0 snprintf warning

Created by: Biswa96

This project can not be built in Linux due to usage of same buffer in source and destination in snprintf(). Here are the points:

• System: ArchLinux X86_64
• Compiler: gcc version 10.1.0 (GCC) Target: x86_64-pc-linux-gnu
• Source version: latest master branch
• Used command: mkdir build; cd build; cmake ../dynamorio/; make
• Compiler error:

In file included from dynamorio/tools/drdeploy.c:67:
dynamorio/tools/drdeploy.c: In function ‘append_client’:
dynamorio/libutil/dr_frontend.h:108:23: error: ‘snprintf’ argument 4 may overlap destination object ‘client_paths’ [-Werror=restrict]
  108 | #    define _snprintf snprintf
dynamorio/tools/drdeploy.c:751:9: note: in expansion of macro ‘_snprintf’
  751 |         _snprintf(client_paths[index], BUFFER_SIZE_ELEMENTS(client_paths[index]), "%s",
      |         ^~~~~~~~~
dynamorio/tools/drdeploy.c:737:20: note: destination object referenced by ‘restrict’-qualified argument 1 was declared here
  737 |               char client_paths[MAX_CLIENT_LIBS][MAXIMUM_PATH],
      |               ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors