/*
-@deftypefn Extension char* concat (char *@var{s1}, char *@var{s2}, ..., @code{NULL})
+@deftypefn Extension char* concat (const char *@var{s1}, const char *@var{s2}, @dots{}, @code{NULL})
Concatenate zero or more of strings and return the result in freshly
-xmalloc'd memory. Returns @code{NULL} if insufficient memory is
+@code{xmalloc}ed memory. Returns @code{NULL} if insufficient memory is
available. The argument list is terminated by the first @code{NULL}
pointer encountered. Pointers to empty strings are ignored.
/*
-@deftypefn Extension char* reconcat (char *@var{optr}, char *@var{s1}, ..., @code{NULL})
+@deftypefn Extension char* reconcat (char *@var{optr}, const char *@var{s1}, @dots{}, @code{NULL})
Same as @code{concat}, except that if @var{optr} is not @code{NULL} it
is freed after the string is created. This is intended to be useful