Consistency `\*only` and `\end*only` commands

Not all possibilities in respect of `\*only` and `\end*only` commands were present which could lead to messages like:
```
.../aa.h:4: warning: reached end of comment while inside a \rtfonly block; check for missing \endrtfonly tag!
../.aa.h:4: warning: rtfonly section ended without end marker
.../aa.h:4: warning: rtfonly section ended without end marker
```
in case of a problem like:
```
/** \file
 * \rtfonly
 * RTF /* Nested */
 * \endrtfonly
 */
```

1 files changed, 8 insertions, 0 deletions

diff --git a/src/doctokenizer.l b/src/doctokenizer.l
index 4882570..11e96d6 100644
--- a/src/doctokenizer.l
+++ b/src/doctokenizer.l
@@ -1296,6 +1296,14 @@ REFWORD_NOCV   {FILEMASK}|{LABELID}|{REFWORD2_NOCV}|{REFWORD3}|{REFWORD4_NOCV}
                                       g_endMarker="endlatexonly";
 				      BEGIN(St_SecSkip);
                                     }
+<St_Sections>{CMD}"manonly"/[^a-z_A-Z0-9] {
+                                      g_endMarker="endmanonly";
+				      BEGIN(St_SecSkip);
+                                    }
+<St_Sections>{CMD}"rtfonly"/[^a-z_A-Z0-9] {
+                                      g_endMarker="endrtfonly";
+				      BEGIN(St_SecSkip);
+                                    }
 <St_Sections>{CMD}"xmlonly"/[^a-z_A-Z0-9] {
                                       g_endMarker="endxmlonly";
 				      BEGIN(St_SecSkip);