Definitions with createdAtStart=true and no qualifier aren't generated correctly

[ithersta]

Describe the bug
@Single(createdAtStart = true) with no qualifier generates invalid code

To Reproduce
Steps to reproduce the behavior:

1. Annotate class with @Single(createdAtStart = true)
2. Do not specify qualifier
3. The generated code contains an extra comma and is invalid:

single(,createdAtStart=true) { … }

Expected behavior
The generated code is valid

Koin project used and used version (please complete the following information):
koin-annotations version 1.2.1

[arnaudgiuliani]

duplicated from InsertKoinIO/koin#1604