gmoccapy: fix error on creating file when RS274NGC_STARTUP_CODE is not set

Author: hansu

src/emc/usr_intf/gmoccapy/getiniinfo.py

@@ -448,7 +448,7 @@ def get_axis_2_min_limit(self):
     def get_RS274_start_code(self):
         temp = self.inifile.find("RS274NGC", "RS274NGC_STARTUP_CODE")
         if not temp:
-            return False
+            temp = ""
         return  temp
 
     def get_user_messages(self):

src/emc/usr_intf/gmoccapy/gmoccapy.py

@@ -4749,8 +4749,6 @@ def on_ntb_button_switch_page(self, *args):
     def on_btn_new_clicked(self, widget, data=None):
         tempfilename = os.path.join(_TEMPDIR, "temp.ngc")
         content = self.get_ini_info.get_RS274_start_code()
-        if content == None:
-            content = " "
         content += "\n\n\n\nM2"
         gcodefile = open(tempfilename, "w")
         gcodefile.write(content)