Fix typos in comments and documentation (regarding 'it is')

* ChangeLog (4.3): Fix typo ("it's").
* doc/platforms/README.amiga (GC_AMIGA_GC): Likewise.
* extra/AmigaOS.c (GC_amiga_allocwrapper_any): Fix typo in comment
("it's").
* malloc.c (GC_free): Likewise.
* new_hblk.c (GC_build_fl): Likewise.
* os_dep.c [DATASTART_USES_BSDGETDATASTART] (GC_FreeBSDGetDataStart):
Likewise.
* reclaim.c (GC_start_reclaim): Likewise.

1 files changed, 1 insertions, 1 deletions

diff --git a/reclaim.c b/reclaim.c
index e9ce779a..201274b7 100644
--- a/reclaim.c
+++ b/reclaim.c
@@ -666,7 +666,7 @@ GC_INNER void GC_start_reclaim(GC_bool report_if_found)
               }
             }
         } /* otherwise free list objects are marked,    */
-          /* and its safe to leave them                 */
+          /* and it's safe to leave them.               */
         BZERO(rlist, (MAXOBJGRANULES + 1) * sizeof(void *));
       }