Spurious asterisk after preprocessing when using macros

When having something like:
```
typedef PACK(enum {
    ENUMA, /**< @brief The asterisk character at the beginning of the next line is not removed, but
            * becomes part of the documentation. */
}) my_enum_t;
```
and a `PREDEFINED `PACK` this leads to an `*` in the output before the word "becomes.
This is due to the, incorrect, joining of lines in case of a multi line block of comment.

Author: albert-github

src/pre.l

@@ -928,9 +928,8 @@ WSopt [ \t\r]*
                                           BEGIN(FindDefineArgs);
                                         }
 <ArgCopyCComment>\n                     {
-                                          yyextra->defArgsStr+=' ';
+                                          yyextra->defArgsStr+=yytext;
                                           yyextra->yyLineNr++;
-                                          outputChar(yyscanner,'\n');
                                         }
 <ArgCopyCComment>.                      {
                                           yyextra->defArgsStr+=yytext;