tmdb: fix function type

Origin commit data
------------------
Commit: 8ba37ed0c9
Author: vanhofen <vanhofen@gmx.de>
Date: 2016-03-04 (Fri, 04 Mar 2016)

Origin message was:
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- tmdb: fix function type

src/gui/tmdb.cpp

@@ -299,7 +299,7 @@ std::string cTmdb::CreateEPGText()
 	return epgtext;
 }
 
-int cTmdb::exec()
+void cTmdb::exec()
 {
 	neutrino_msg_t      msg;
 	neutrino_msg_data_t data;

src/gui/tmdb.h

@@ -66,7 +66,7 @@ class cTmdb
 	public:
 		cTmdb(std::string epgtitle);
 		~cTmdb();
-		int exec();
+		void exec();
 		std::string CreateEPGText();
 
 		std::string getTitle()				{ return minfo.epgtitle;}