RFR: JDK-8179225: Update graphviz bundle script with up to date build instructions

[Erik Joelsson]

The make/devkit/createGraphvizBundle.sh script documents how we create a 
more or less standalone bundle with the dot command. It was discovered 
that this bundle wasn't as standalone as it could be and this was fixed 
by adding some more libraries to the bundle. This change updates the 
script the reflect these updated build instructions.

Bug: https://bugs.openjdk.java.net/browse/JDK-8179225

Patch:

diff -r 35017c286513 make/devkit/createGraphvizBundle.sh
--- a/make/devkit/createGraphvizBundle.sh
+++ b/make/devkit/createGraphvizBundle.sh
@@ -39,6 +39,7 @@
  wget 
http://www.graphviz.org/pub/graphviz/stable/redhat/el6/x86_64/os/graphviz-libs-$GRAPHVIZ_VERSION.el6.x86_64.rpm
  wget 
http://www.graphviz.org/pub/graphviz/stable/redhat/el6/x86_64/os/graphviz-plugins-core-$GRAPHVIZ_VERSION.el6.x86_64.rpm
  wget 
http://www.graphviz.org/pub/graphviz/stable/redhat/el6/x86_64/os/graphviz-plugins-x-$GRAPHVIZ_VERSION.el6.x86_64.rpm
+wget 
http://public-yum.oracle.com/repo/OracleLinux/OL6/latest/x86_64/getPackage/libtool-ltdl-2.2.6-15.5.el6.x86_64.rpm

  mkdir graphviz
  cd graphviz


/Erik