PatternMatchUI : Tweak graph editor UI

Bringing it into line with other AuxiliaryNodeGadget setups.

python/GafferUI/PatternMatchUI.py

@@ -50,6 +50,7 @@
 
 	"nodeGadget:type", "GafferUI::AuxiliaryNodeGadget",
 	"auxiliaryNodeGadget:label", "*",
+	"nodeGadget:shape", "oval",
 	"nodeGadget:focusGadgetVisible", False,
 	"uiEditor:nodeGadgetTypes", IECore.StringVectorData( [ "GafferUI::AuxiliaryNodeGadget", "GafferUI::StandardNodeGadget" ] ),
 
@@ -62,6 +63,8 @@
 			The string to be tested.
 			""",
 
+			"nodule:type", "",
+
 		],
 
 		"pattern" : [
@@ -82,6 +85,8 @@
 			| \\        | Escapes the next character                   |
 			""",
 
+			"nodule:type", "",
+
 		],
 
 		"enabled" : [
@@ -100,6 +105,8 @@
 			Outputs `true` if the string matches the pattern, and `false` otherwise.
 			""",
 
+			"nodule:type", "",
+
 		],
 
 	}