[bdf, psnames, sfnt] Avoid some memory zeroing.

* src/bdf/bdfdrivr.c (BDF_Face_Init): Use Q-macro.
* src/sfnt/sfobjs.c (sfnt_load_face): Ditto.
* src/psnames/psmodule.c (src/psnames/psmodule.c): Remove zero.

src/bdf/bdfdrivr.c

@@ -606,7 +606,7 @@ THE SOFTWARE.
         unsigned long  n;
 
 
-        if ( FT_NEW_ARRAY( face->en_table, font->glyphs_size ) )
+        if ( FT_QNEW_ARRAY( face->en_table, font->glyphs_size ) )
           goto Exit;
 
         face->default_glyph = 0;

src/psnames/psmodule.c

@@ -325,7 +325,6 @@
 
     /* we first allocate the table */
     table->num_maps = 0;
-    table->maps     = NULL;
 
     if ( !FT_QNEW_ARRAY( table->maps, num_glyphs + EXTRA_GLYPH_LIST_SIZE ) )
     {

src/sfnt/sfobjs.c

@@ -1209,7 +1209,7 @@
           /* of `FT_Face', we map `available_sizes' indices to strike    */
           /* indices                                                     */
           if ( FT_NEW_ARRAY( root->available_sizes, count ) ||
-               FT_NEW_ARRAY( sbit_strike_map, count ) )
+               FT_QNEW_ARRAY( sbit_strike_map, count ) )
             goto Exit;
 
           bsize_idx = 0;