Fix @examples in cc-mode.info, where lines were getting glued together.

This happened because of false @c's in macro lines.

* /doc/misc/cc-mode.texi (Line-up Functions): Remove the unneeded @c from
macros sssTBasicOffset, sssTsssTBasicOffset, and hereFn.

doc/misc/cc-mode.texi

@@ -5634,15 +5634,15 @@ Works with:
 @end ifinfo
 
 @macro sssTBasicOffset
-<--> @i{c-basic-offset}@c
+<--> @i{c-basic-offset}
 @end macro
 
 @macro sssTsssTBasicOffset
-<--><--> @i{c-basic-offset}@c
+<--><--> @i{c-basic-offset}
 @end macro
 
 @macro hereFn{func}
-<- @i{\func\}@c
+<- @i{\func\}
 @end macro
 
 @c The TeX backend seems to insert extra spaces around the argument. :P