Fixes errors like this when building with CMake (which uses -Wall,
-Wextra and -Werror) on Ubuntu 21.10 with gcc 11.2.0.
../lib/sfio/sfvprintf.c:76:13: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
76 | if(n != w) goto done; n = 0;\
| ^~
../lib/sfio/sfvprintf.c:511:25: note: in expansion of macro ‘SFnputc’
511 | SFnputc(f, '0', n);
| ^~~~~~~
../lib/sfio/sfvprintf.c:511:41: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
511 | SFnputc(f, '0', n);
| ^
../lib/sfio/sfvprintf.c:76:35: note: in definition of macro ‘SFnputc’
76 | if(n != w) goto done; n = 0;\
| ^
{ if((endd-d) >= n) { while(n--) *d++ = (uchar)c; } \
else \
{ SFEND(f); n_output += (w = SFNPUTC(f,c,n)) > 0 ? w : 0; SFBUF(f); \
- if(n != w) goto done; n = 0;\
+ if(n != w) goto done; \
+ n = 0; \
} \
}
#define SFwrite(f,s,n) \