[cpp.include] Remove spurious comma.

Author: Stefanus Du Toit

source/preprocessor.tex

@@ -434,7 +434,7 @@
 (that does not match one of the two previous forms) is permitted.
 The preprocessing tokens after
 \tcode{include}
-in the directive are processed just as in normal text, 
+in the directive are processed just as in normal text
 (i.e., each identifier currently defined as a macro name is replaced by its
 replacement list of preprocessing tokens).
 If the directive resulting after all replacements does not match