RFR: Add dependency information for initial RFR mail of a dependent PR [v2]

[Robin Westberg]

> When sending out an RFR email for a dependent PR, include a line describing the dependency.

Robin Westberg has updated the pull request incrementally with one additional commit since the last revision:

  Apply suggestions from code review
  
  Co-authored-by: Erik Duveblad <erik.helin at oracle.com>

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Changes:
  - all: https://git.openjdk.java.net/skara/pull/991/files
  - new: https://git.openjdk.java.net/skara/pull/991/files/4e92b67c..bad057aa

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=991&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=991&range=00-01

  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/skara/pull/991.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/991/head:pull/991

PR: https://git.openjdk.java.net/skara/pull/991