The POSIX sh(1) specification says that strings are compared with test(1) (also "[") with "=". Bash accepts "==" and this leads to non-portable code. This commit simply changes "==" within test/[ to "=".

#### Pre-Submission Checklist - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated)

#### Type Of Change - [x] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality)

#### Checklist: - [] PR should be backported to stable branches - [ ] Tested changes locally - [x] Related to issue #2157

#### Description This changes instances of "==" as a an operator to test(1) to "=". I have not yes tested running the script, because I am still working through issues to package kamailio in pkgsrc. However, this patch avoids a lint-type warning from pkgsrc about non-portable shell script constructs. You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/2159

-- Commit Summary --

* utils: Change sh(1) "test ==" usage to "="

-- File Changes --

M utils/kamctl/kamdbctl (10)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/2159.patch https://github.com/kamailio/kamailio/pull/2159.diff