[cpp] Improve spacing aroud {h,q}-char-sequences

Author: tkoeppe

source/preprocessor.tex

@@ -455,7 +455,7 @@
 A preprocessing directive of the form
 
 \begin{ncsimplebnf}
-\terminal{\# include <}h-char-sequence\terminal{>} new-line
+\terminal{\# include <} h-char-sequence \terminal{>} new-line
 \end{ncsimplebnf}
 
 searches a sequence of
@@ -475,11 +475,9 @@
 
 \pnum
 A preprocessing directive of the form
-
 \begin{ncsimplebnf}
-\terminal{\# include "}q-char-sequence\terminal{"} new-line
+\terminal{\# include "} q-char-sequence \terminal{"} new-line
 \end{ncsimplebnf}
-
 causes the replacement of that
 directive by the entire contents of the
 source file identified by the specified sequence between the
@@ -491,11 +489,9 @@
 If this search is not supported,
 or if the search fails,
 the directive is reprocessed as if it read
-
 \begin{ncsimplebnf}
-\terminal{\# include <}h-char-sequence\terminal{>} new-line
+\terminal{\# include <} h-char-sequence \terminal{>} new-line
 \end{ncsimplebnf}
-
 with the identical contained sequence (including
 \tcode{>}
 characters, if any) from the original directive.