Fix typo unkown -> unknown.

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>
(cherry picked from commit 3f0d5d17)

modules/access/sftp.c

@@ -187,7 +187,7 @@ static int Open( vlc_object_t* p_this )
 
     libssh2_knownhost_free( ssh_knownhosts );
 
-    /* Check that it does match or at least that the host is unkown */
+    /* Check that it does match or at least that the host is unknown */
     switch(check)
     {
     case LIBSSH2_KNOWNHOST_CHECK_FAILURE:

modules/codec/lpcm.c

@@ -134,7 +134,7 @@ struct encoder_sys_t
  * - padding(variable)
  *
  * LPCM BD header :
- * - unkown (16 bits)
+ * - unknown (16 bits)
  * - number of channels (4 bits)
  * - frequency (4 bits)
  * - bits per sample (2 bits)

modules/codec/omxil/utils.c

@@ -244,7 +244,7 @@ const char *ErrorToString(OMX_ERRORTYPE error)
         "OMX_ErrorFormatNotDetected", "OMX_ErrorContentPipeOpenFailed",
         "OMX_ErrorContentPipeCreationFailed", "OMX_ErrorSeperateTablesUsed",
         "OMX_ErrorTunnelingUnsupported",
-        "OMX_Error unkown"
+        "OMX_Error unknown"
     };
 
     if(error == OMX_ErrorNone) return "OMX_ErrorNone";

modules/mux/asf.c

@@ -980,7 +980,7 @@ static block_t *asf_header_create( sout_mux_t *p_mux, bool b_broadcast )
         bo_addle_u32( &bo, p_fmt->i_bitrate );  /* Alternate Bitrate */
         bo_addle_u32( &bo, 0 );                 /* Alternate Buffer size */
         bo_addle_u32( &bo, 0 );                 /* Alternate Initial buffer fullness */
-        bo_addle_u32( &bo, 0 );                 /* Maximum object size (0 = unkown) */
+        bo_addle_u32( &bo, 0 );                 /* Maximum object size (0 = unknown) */
         bo_addle_u32( &bo, 0x02 );              /* Flags (seekable) */
         bo_addle_u16( &bo, p_track->i_id ); /* Stream number */
         bo_addle_u16( &bo, 0 ); /* Stream language index */