Get rid of extraneous char conversion.

common/fp_lib_table.cpp

@@ -196,9 +196,10 @@ void FP_LIB_TABLE::Parse( LIB_TABLE_LEXER* in )
         {
             delete tmp;     // The table did not take ownership of the row.
 
-            wxString msg = wxString::Format(
-                                _( "Duplicate library nickname \"%s\" found in footprint library "
-                                   "table file line %d" ), GetChars( nickname ), lineNum );
+            wxString msg = wxString::Format( _( "Duplicate library nickname \"%s\" found in "
+                                                "footprint library table file line %d" ),
+                                             nickname,
+                                             lineNum );
 
             if( !errMsg.IsEmpty() )
                 errMsg << '\n';
@@ -290,7 +291,7 @@ const FP_LIB_TABLE_ROW* FP_LIB_TABLE::FindRow( const wxString& aNickname )
     {
         wxString msg = wxString::Format(
             _( "fp-lib-table files contain no library with nickname \"%s\"" ),
-            GetChars( aNickname ) );
+            aNickname );
 
         THROW_IO_ERROR( msg );
     }
@@ -479,7 +480,7 @@ bool FP_LIB_TABLE::LoadGlobalTable( FP_LIB_TABLE& aTable )
         if( !fn.DirExists() && !fn.Mkdir( 0x777, wxPATH_MKDIR_FULL ) )
         {
             THROW_IO_ERROR( wxString::Format( _( "Cannot create global library table path \"%s\"." ),
-                                              GetChars( fn.GetPath() ) ) );
+                                              fn.GetPath() ) );
         }
 
         // Attempt to copy the default global file table from the KiCad