Fix suggest reviewers when requested without limit option

According to documentation default limit is used when limit is not
passed (rest-api-changes.txt):
"If result limit is not passed, then the default 10 is used."

Without this change, limit field got not initialized properly when
in an empty result in any case.

Change-Id: I2fddcd589cb9c39d73499e6eaa927cacd21d33d7
2 files changed