[master] 71a8353 Typo

[Dridi Boukelmoune]

commit 71a83537340a6e881e483b5b0dd3206ffee9d177
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Thu Aug 6 14:47:56 2015 +0200

    Typo

diff --git a/bin/varnishd/cache/cache_shmlog.c b/bin/varnishd/cache/cache_shmlog.c
index 07167d4..ae49087 100644
--- a/bin/varnishd/cache/cache_shmlog.c
+++ b/bin/varnishd/cache/cache_shmlog.c
@@ -362,7 +362,7 @@ VSLb_ts(struct vsl_log *vsl, const char *event, double first, double *pprev,
 
 	/* XXX: Make an option to turn off some unnecessary timestamp
 	   logging. This must be done carefully because some functions
-	   (e.g. V1L_Reserve) takes the last timestamp as it's initial
+	   (e.g. V1L_Reserve) takes the last timestamp as its initial
 	   value for timeout calculation. */
 	vsl_sanity(vsl);
 	assert(!isnan(now) && now != 0.);