tree 150e70ba259b49ab047cd3f898511bdca24fb043
parent 4cb61bed13a4219ad7cde909145f1abd6e9b2856
author Inseob Kim <inseob@google.com> 1559976471 +0900
committer Inseob Kim <inseob@google.com> 1559977838 +0900

Clean up sortedKeys function

This introduces a generic function SortedStringKeys which can be used to
get a slice of sorted string keys for all kinds of maps having string
keys.

Bug: N/A
Test: m
Change-Id: I542194c68984d909b7ad1dbf060d4d3a98f0ef23