Update rgbalancer.md
Updated the regex pattern. With version 2.1 the double backslashes for the regex through a BadArgumentexception. Assume it is related to change from using Jline ConsoleReader to using LineReader.
diff --git a/docs/rgbalancer.md b/docs/rgbalancer.md
index 7f897c0..daa1a3b 100644
--- a/docs/rgbalancer.md
+++ b/docs/rgbalancer.md
@@ -95,7 +95,7 @@
from a tablets end row as the group id. Tablets that don't match and the
default tablet are configured to be in group 04.
- root@accumulo testRGB> config -t testRGB -s table.custom.balancer.group.regex.pattern=(\\d\\d).*
+ root@accumulo testRGB> config -t testRGB -s table.custom.balancer.group.regex.pattern=(\d\d).*
root@accumulo testRGB> config -t testRGB -s table.custom.balancer.group.regex.default=04
root@accumulo testRGB> config -t testRGB -s table.balancer=org.apache.accumulo.server.master.balancer.RegexGroupBalancer