Also recognzie 'c++' as an extension for C syntax highlighting.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4592 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

+2014-02-22  Dennis Jenkins  <dennisjenkins@Savannah>  (tiny change)
+	* doc/syntax/c.nanorc - Also recognize c++ as extension.
+
 2014-02-22  Benno Schulenberg  <bensberg@justemail.net>
 	* src/nano.c (move_to_filestruct) - Update the data in 'mark_begin'
 	when mark and cursor are on the same line.  This avoids a segfault

doc/syntax/c.nanorc

 ## Here is an example for C/C++.
 ##
-syntax "c" "\.(c(c|pp|xx)?|C)$" "\.(h(h|pp|xx)?|H)$" "\.ii?$"
+syntax "c" "\.(c(c|pp|xx|\+\+)?|C)$" "\.(h(h|pp|xx)?|H)$" "\.ii?$"
 magic "ASCII C(\+\+)? program text"
 color brightred "\<[A-Z_][0-9A-Z_]+\>" 
 color green "\<(float|double|bool|char|int|short|long|sizeof|enum|void|auto|static|const|struct|union|typedef|extern|(un)?signed|inline)\>"