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/admin.cpp

@@ -433,7 +433,7 @@ class CAdminMod : public CModule {
 		Table.AddColumn("Ident");
 		Table.AddColumn("VHost");
 
-		for (map<CString, CUser*>::const_iterator it = msUsers.begin(); it != msUsers.end(); it++) {
+		for (map<CString, CUser*>::const_iterator it = msUsers.begin(); it != msUsers.end(); ++it) {
 			Table.AddRow();
 			Table.SetCell("Username", it->first);
 			Table.SetCell("Realname", it->second->GetRealName());