Change synthetizer to synthesizer

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/codec/fluidsynth.c

 /*****************************************************************************
- * fluidsynth.c: Software MIDI synthetizer using libfluidsynth
+ * fluidsynth.c: Software MIDI synthesizer using libfluidsynth
  *****************************************************************************
  * Copyright © 2007 Rémi Denis-Courmont
  * $Id$
@@ -54,7 +54,7 @@ static int  Open  (vlc_object_t *);
 static void Close (vlc_object_t *);
 
 vlc_module_begin ()
-    set_description (N_("FluidSynth MIDI synthetizer"))
+    set_description (N_("FluidSynth MIDI synthesizer"))
     set_capability ("decoder", 100)
     set_shortname (N_("FluidSynth"))
     set_category (CAT_INPUT)

modules/demux/smf.c

@@ -558,7 +558,7 @@ skip:
 }
 
 /*****************************************************************************
- * Demux: read chunks and send them to the synthetizer
+ * Demux: read chunks and send them to the synthesizer
  *****************************************************************************
  * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
  *****************************************************************************/