Fix auto doc group names

ArduCopter/Parameters.pde

@@ -903,16 +903,16 @@ const AP_Param::Info var_info[] PROGMEM = {
     // @Path: ../libraries/AC_WPNav/AC_WPNav.cpp
     GOBJECT(wp_nav, "WPNAV_",       AC_WPNav),
 
-    // @Group: WPNAV_
+    // @Group: CIRCLE_
     // @Path: ../libraries/AC_WPNav/AC_Circle.cpp
     GOBJECT(circle_nav, "CIRCLE_",  AC_Circle),
 
 #if FRAME_CONFIG == HELI_FRAME
-    // @Group: ATCON_
+    // @Group: ATC_
     // @Path: ../libraries/AC_AttitudeControl/AC_AttitudeControl_Heli.cpp
     GOBJECT(attitude_control, "ATC_", AC_AttitudeControl_Heli),
 #else
-    // @Group: ATCON_
+    // @Group: ATC_
     // @Path: ../libraries/AC_AttitudeControl/AC_AttitudeControl.cpp
     GOBJECT(attitude_control, "ATC_", AC_AttitudeControl),
 #endif
@@ -960,7 +960,7 @@ const AP_Param::Info var_info[] PROGMEM = {
     GOBJECT(BoardConfig,            "BRD_",       AP_BoardConfig),    
 
 #if SPRAYER == ENABLED
-    // @Group: SPRAYER_
+    // @Group: SPRAY_
     // @Path: ../libraries/AC_Sprayer/AC_Sprayer.cpp
     GOBJECT(sprayer,                "SPRAY_",       AC_Sprayer),
 #endif