Fix a bunch of style suggestions from cppcheck[1]

Thanks to DarthGandalf for this patch. You must be bored. :P

[1] cppcheck.sf.net


git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1776 726aef4b-f618-498e-8847-2d620e286838

modules/crypt.cpp

@@ -124,7 +124,7 @@ public:
 				Table.AddColumn("Target");
 				Table.AddColumn("Key");
 
-				for (MCString::iterator it = BeginNV(); it != EndNV(); it++) {
+				for (MCString::iterator it = BeginNV(); it != EndNV(); ++it) {
 					Table.AddRow();
 					Table.SetCell("Target", it->first);
 					Table.SetCell("Key", it->second);