I18N: Update translation (Spanish)

Currently translated at 96.6% (897 of 928 strings)

po/es_ES.po

@@ -9,7 +9,7 @@ msgstr ""
 "Report-Msgid-Bugs-To: scummvm-devel@lists.scummvm.org\n"
 "POT-Creation-Date: 2016-11-29 23:17+0100\n"
 "PO-Revision-Date: 2016-11-29 23:02+0000\n"
-"Last-Translator: Eugene Sandulenko <sev@scummvm.org>\n"
+"Last-Translator: John Doe <felipino@hotmail.com.ar>\n"
 "Language-Team: Spanish "
 "<https://translations.scummvm.org/projects/scummvm/scummvm/es/>\n"
 "Language: es_ES\n"
@@ -4386,7 +4386,7 @@ msgstr "No se puede guardar en la ranura %d "
 #: engines/toon/toon.cpp:226
 #, c-format
 msgid "Could not quick save into slot #%d"
-msgstr ""
+msgstr "No se pudo hacer un quick save en el slot #%d"
 
 #: engines/toon/toon.cpp:239
 #, fuzzy, c-format