@deftypefn Replacement void* xmalloc (size_t)
Allocate memory without fail. If @code{malloc} fails, this will print
-a message to stderr (using the name set by @code{xmalloc_set_program_name},
+a message to @code{stderr} (using the name set by
+@code{xmalloc_set_program_name},
if any) and then call @code{xexit}. Note that it is therefore safe for
a program to contain @code{#define malloc xmalloc} in its source.