Index: 06_common/keytree.svg
===================================================================
--- 06_common/keytree.svg	(revision 15952)
+++ 06_common/keytree.svg	(revision 15953)
@@ -73,7 +73,7 @@
 <!-- a2 -->
 <g id="node7" class="node"><title>a2</title>
 <ellipse fill="none" stroke="black" cx="245" cy="-26.8701" rx="27" ry="26.7407"/>
-<text text-anchor="middle" x="245" y="-30.6701" font-family="Times,serif" font-size="14.00">l</text>
+<text text-anchor="middle" x="245" y="-30.6701" font-family="Times,serif" font-size="14.00">a</text>
 <text text-anchor="middle" x="245" y="-15.6701" font-family="Times,serif" font-size="14.00">arc</text>
 </g>
 <!-- t1&#45;&gt;a2 -->
Index: 06_common/src/keytree.dot
===================================================================
--- 06_common/src/keytree.dot	(revision 15952)
+++ 06_common/src/keytree.dot	(revision 15953)
@@ -5,7 +5,7 @@
 		n2 [label="n\nnew"]
 	t1 [label="t\ntool"]
 		l2 [label="l\nline"]
-		a2 [label="l\narc"]
+		a2 [label="a\narc"]
 
 
 	root->f1