[6.0] 034cb4f17 fix typo

[Dridi Boukelmoune]

commit 034cb4f17965fce56ac03ba0c6ae1143ba550470
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Mon May 7 15:05:47 2018 +0200

    fix typo
    
    spotted by @lkarsten

diff --git a/bin/varnishd/VSC_main.vsc b/bin/varnishd/VSC_main.vsc
index 4fe84d849..a2e2d0143 100644
--- a/bin/varnishd/VSC_main.vsc
+++ b/bin/varnishd/VSC_main.vsc
@@ -11,7 +11,7 @@
 	:level:	debug
 	:oneliner:	stat summ operations
 
-	Numer of times per-thread statistics were added to the
+	Number of times per-thread statistics were added to the
 	global counters.
 
 .. varnish_vsc:: uptime