Improve SimplePie_Misc::get_curl_version()
Improve SimplePie_Misc::get_curl_version()

songfj/simplepie,Alkarex/simplepie,simplepie/simplepie,gsnedders/complexpie,blat/simplepie,wikidi/simplepie,wikidi/simplepie,Alexia/SimplePie,FreshRSS/simplepie,blat/simplepie,mblaney/simplepie,barryvdh/simplepie,blat/simplepie,skyzyx/simplepie,Alkarex/simplepie,ropik/simplepie,skyzyx/simplepie,barryvdh/simplepie,ropik/simplepie,Alkarex/simplepie,wikidi/simplepie,barryvdh/simplepie,mblaney/simplepie,FreshRSS/simplepie,songfj/simplepie,Alexia/SimplePie,songfj/simplepie,simplepie/simplepie