hg: jdk/submit: 8251155: HostIdentifier fails to canonicalize hostnames starting with digits

[jiefu at tencent.com]

Changeset: 84d35a6c0bf9
Author:    jiefu
Date:      2020-08-05 15:07 +0800
URL:       https://hg.openjdk.java.net/jdk/submit/rev/84d35a6c0bf9

8251155: HostIdentifier fails to canonicalize hostnames starting with digits
Reviewed-by: sspitsyn, redestad

! src/jdk.internal.jvmstat/share/classes/sun/jvmstat/monitor/HostIdentifier.java
+ test/jdk/sun/tools/jps/TestJpsHostName.java