Bug #12167: Backport r54025 (Avoid false positive in an IMAP test)

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONE

[ReiOdaira (Rei Odaira)]

This is a ticket to back-port r54025 to 2.3.

[naruse (Yui NARUSE)]

• Backport changed from 2.1: DONTNEED, 2.2: DONTNEED, 2.3: REQUIRED to 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONE

ruby_2_3 r54411 merged revision(s) 54025.