I18N: Update translation (Spanish)

Currently translated at 82.7% (929 of 1123 strings)

po/es_ES.po

@@ -9,7 +9,7 @@ msgstr ""
 "Report-Msgid-Bugs-To: scummvm-devel@lists.scummvm.org\n"
 "POT-Creation-Date: 2019-09-14 02:42+0200\n"
 "PO-Revision-Date: 2019-09-14 12:06+0000\n"
-"Last-Translator: Manuel <manolo_mtnez@hotmail.com>\n"
+"Last-Translator: Eugene Sandulenko <sev@scummvm.org>\n"
 "Language-Team: Spanish <https://translations.scummvm.org/projects/scummvm/"
 "scummvm/es/>\n"
 "Language: es_ES\n"
@@ -1209,15 +1209,15 @@ msgstr "Teclas"
 
 #: gui/options.cpp:1696
 msgid "GUI language:"
-msgstr "Idioma GPU:"
+msgstr "Lenguaje de la interfaz:"
 
 #: gui/options.cpp:1696
 msgid "Language of ScummVM GUI"
 msgstr "Idioma de la interfaz de ScummVM"
 
 #: gui/options.cpp:1722
 msgid "Switch the GUI language to the game language"
-msgstr "Cambiar el idioma de la GPU al idioma del juego"
+msgstr "Cambia el idioma de la GUI al idioma del juego"
 
 #: gui/options.cpp:1723
 msgid ""