opkg_manager: avoid the zombie apocalypse, use waitpid()

Origin commit data
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Branch: ni/coolstream
Commit: 4dc1efbf2c
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2017-01-28 (Sat, 28 Jan 2017)


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No further description and justification available within origin commit message!

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This commit was generated by Migit

src/gui/opkg_manager.cpp

@@ -789,6 +789,8 @@ void COPKGManager::getPkgData(const int pkg_content_id)
 		}
 	}
 
+	waitpid(pid, NULL, 0); /* beware of the zombie apocalypse! */
+
 	fclose(f);
 }