Re: [PATCH] pg_regress.c: Fix "make check" on Mac OS X: Pass DYLD_LIBRARY_PATH

I have applied the patch to the latest master branch and successfully executed './configure && make && make check' on
macOSVentura. However, during the process, a warning was encountered: "mixing declarations and code is incompatible
withstandards before C99 [-Wdeclaration-after-statement]". Moving the declaration of 'result' to the beginning like
belowcan resolve the warning, and it would be better to use a unique variable instead of 'result'. 
 

#ifdef __darwin__
static char extra_envvars[4096];
+int result = -1;
... ...
-int result = snprintf(extra_envvars, sizeof(extra_envvars), "DYLD_LIBRARY_PATH=%s",
+result = snprintf(extra_envvars, sizeof(extra_envvars), "DYLD_LIBRARY_PATH=%s",