RFR: 2278: Issuestitle Check shouldn't treat special character as leading lowercase letter [v2]

[Zhao Song]

> Currently, in IssuesTitleCheck::hasLeadingLowercaseLetter, the method checks if the leading character is uppercase, if so, it returns false. Otherwise, it will treat the character as lowercase. This is wrong because it treats special characters as lowercase letters. The solution is to make the method to check if the leading character is a lowercase letter.

Zhao Song has updated the pull request incrementally with one additional commit since the last revision:

  update

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Changes:
  - all: https://git.openjdk.org/skara/pull/1656/files
  - new: https://git.openjdk.org/skara/pull/1656/files/f0c70f70..b172940c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=skara&pr=1656&range=01
 - incr: https://webrevs.openjdk.org/?repo=skara&pr=1656&range=00-01

  Stats: 7 lines in 1 file changed: 0 ins; 5 del; 2 mod
  Patch: https://git.openjdk.org/skara/pull/1656.diff
  Fetch: git fetch https://git.openjdk.org/skara.git pull/1656/head:pull/1656

PR: https://git.openjdk.org/skara/pull/1656