Fix assign double username variable.
Fix assign double username variable.

vjandrea/Instagram-PHP-API,kevinohashi/Instagram-PHP-API,imjerrybao/Instagram-PHP-API,mayoalexander/fl-two,mayoalexander/fl-two,killuawax/Instagram-PHP-API,MarkSparks/Instagram-PHP-API,chiriboga/Instagram-PHP-API,mayoalexander/fl-two,m4h4n/Instagram-PHP-API,GuidoBR/instagram-api,kerkness/Instagram-PHP-API,SDKiller/Instagram-PHP-API,muhammeddilaver/Instagram-PHP-API,beeseenmedia/Instagram-PHP-API,mayoalexander/fl-two,jonathantorres/Instagram-PHP-API,chantskevin/Instagram-PHP-API,Cherchercher/Instagram-PHP-API,richardfriedman/Instagram-PHP-API,ThinklabsGbR/Instagram-PHP-API,mayoalexander/fl-two,janek2012/Instagram-PHP-API,mayoalexander/fl-two,reprovinci/Instagram-PHP-API,Gorets/Instagram-PHP-API,nandadotexe/Instagram-PHP-API,cosenary/Instagram-PHP-API,mayoalexander/fl-two