rename s to dst, just like in strncat, strcpy and strncpy.
Index: strcat.3 =================================================================== RCS file: /cvs/src/lib/libc/string/strcat.3,v retrieving revision 1.17 diff -u -p -r1.17 strcat.3 --- strcat.3 19 Apr 2014 11:30:40 -0000 1.17 +++ strcat.3 26 May 2016 21:22:02 -0000 @@ -40,14 +40,14 @@ .Sh SYNOPSIS .In string.h .Ft char * -.Fn strcat "char *s" "const char *append" +.Fn strcat "char *dst" "const char *append" .Sh DESCRIPTION The .Fn strcat function appends a copy of the NUL-terminated string .Fa append to the end of the NUL-terminated string -.Fa s , +.Fa dst , then adds a terminating .Ql \e0 . .Pp @@ -60,7 +60,7 @@ subsequent memory will be damaged. The .Fn strcat function return the pointer -.Fa s . +.Fa dst . .Sh SEE ALSO .Xr strlcpy 3 , .Xr wcscat 3 ,
