Typo repair.

Doc/api/concrete.tex

@@ -635,7 +635,7 @@ parameter and are called with a non-string parameter.
     \lineiii{\%ld}{long}{Exactly equivalent to \code{printf("\%ld")}.}
     \lineiii{\%lu}{unsigned long}{Exactly equivalent to \code{printf("\%lu")}.}
     \lineiii{\%zd}{Py_ssize_t}{Exactly equivalent to \code{printf("\%zd")}.}
-    \lineiii{\%zu}{ssize_t}{Exactly equivalent to \code{printf("\%zu")}.}
+    \lineiii{\%zu}{size_t}{Exactly equivalent to \code{printf("\%zu")}.}
     \lineiii{\%i}{int}{Exactly equivalent to \code{printf("\%i")}.}
     \lineiii{\%x}{int}{Exactly equivalent to \code{printf("\%x")}.}
     \lineiii{\%s}{char*}{A null-terminated C character array.}

Doc/api/exceptions.tex

@@ -152,7 +152,7 @@ for each thread.
     \lineiii{\%ld}{long}{Exactly equivalent to \code{printf("\%ld")}.}
     \lineiii{\%lu}{unsigned long}{Exactly equivalent to \code{printf("\%lu")}.}
     \lineiii{\%zd}{Py_ssize_t}{Exactly equivalent to \code{printf("\%zd")}.}
-    \lineiii{\%zu}{ssize_t}{Exactly equivalent to \code{printf("\%zu")}.}
+    \lineiii{\%zu}{size_t}{Exactly equivalent to \code{printf("\%zu")}.}
     \lineiii{\%i}{int}{Exactly equivalent to \code{printf("\%i")}.}
     \lineiii{\%x}{int}{Exactly equivalent to \code{printf("\%x")}.}
     \lineiii{\%s}{char*}{A null-terminated C character array.}