hg: jdk/submit: 8202582: DateTimeFormatterBuilder.parseOffsetBased unnecessarily calls toString()

[rachna.goel at oracle.com]

Changeset: 41069c4fad29
Author:    rgoel
Date:      2018-05-04 15:44 +0530
URL:       http://hg.openjdk.java.net/jdk/submit/rev/41069c4fad29

8202582: DateTimeFormatterBuilder.parseOffsetBased unnecessarily calls toString()
Summary: call text.subSequence() before calling toString() on input string
Reviewed-by: igerasim

! src/java.base/share/classes/java/time/format/DateTimeFormatterBuilder.java