Cleanup some excess whitespaces and tabs, and fix a few typos along the way.

src/protocol.cpp

@@ -360,16 +360,16 @@ bool IRCDProto::IsNickValid(const Anope::string &nick)
 
 	 if (nick.empty())
 	 	return false;
-	
+
 	Anope::string special = "[]\\`_^{|}";
-	
+
 	for (unsigned i = 0; i < nick.length(); ++i)
 		if (!(nick[i] >= 'A' && nick[i] <= 'Z') && !(nick[i] >= 'a' && nick[i] <= 'z')
 		  && special.find(nick[i]) == Anope::string::npos
 		  && (Config && Config->NickChars.find(nick[i]) == Anope::string::npos)
 		  && (!i || (!(nick[i] >= '0' && nick[i] <= '9') && nick[i] != '-')))
 			return false;
-	
+
 	return true;
 }
 
@@ -502,4 +502,3 @@ unsigned IRCDMessage::GetParamCount() const
 {
 	return this->param_count;
 }
-