Suppress warnings about missing field initializers for wxKeyNames.

This warning is harmless but annoying, especially because it's given a couple
of dozens times in this file, so just suppress it.

src/common/accelcmn.cpp

@@ -38,6 +38,8 @@ wxAcceleratorTable wxNullAcceleratorTable;
 // wxAcceleratorEntry implementation
 // ============================================================================
 
+wxGCC_WARNING_SUPPRESS(missing-field-initializers)
+
 static const struct wxKeyName
 {
     wxKeyCode code;
@@ -112,6 +114,8 @@ static const struct wxKeyName
     { WXK_COMMAND,          /*TRANSLATORS: Name of keyboard key*/ wxTRANSLATE("Command") },
 };
 
+wxGCC_WARNING_RESTORE(missing-field-initializers)
+
 // return true if the 2 strings refer to the same accel
 //
 // as accels can be either translated or not, check for both possibilities and