Grammar in comments

includes/rts/Linker.h

@@ -37,7 +37,7 @@ void initLinker (void);
  *   zero     => Do not retain CAFs.  Everything reachable from foreign
  *               exports will be retained, due to the StablePtrs
  *               created by the module initialisation code.  unloadObj
- *               free these StablePtrs, which will allow the CAFs to
+ *               frees these StablePtrs, which will allow the CAFs to
  *               be GC'd and the code to be removed.
  */
 void initLinker_ (int retain_cafs);

rts/Linker.c

@@ -1562,7 +1562,7 @@ void initLinker (void)
 {
     // default to retaining CAFs for backwards compatibility.  Most
     // users will want initLinker_(0): otherwise unloadObj() will not
-    // be able to object files when they contain CAFs.
+    // be able to unload object files when they contain CAFs.
     initLinker_(1);
 }