prompt string fixes

stepmania/src/ScreenOptionsManageCourses.cpp

@@ -361,7 +361,7 @@ void ScreenOptionsManageCourses::ProcessMenuStart( PlayerNumber pn, const InputE
 		}
 		ScreenTextEntry::TextEntry( 
 			SM_BackFromEnterNameForNew, 
-			"Enter a name for a new course.", 
+			"Enter a name for the new course.", 
 			sDefaultName, 
 			MAX_EDIT_COURSE_TITLE_LENGTH, 
 			ValidateEditCourseName );

stepmania/src/ScreenOptionsManageProfiles.cpp

@@ -364,7 +364,7 @@ void ScreenOptionsManageProfiles::ProcessMenuStart( PlayerNumber pn, const Input
 		}
 		ScreenTextEntry::TextEntry( 
 			SM_BackFromEnterNameForNew, 
-			"Enter a name for a new course.", 
+			"Enter a name for the new profile.", 
 			sPotentialName, 
 			PROFILE_MAX_DISPLAY_NAME_LENGTH, 
 			ValidateLocalProfileName );