Copy of file instead of symlink on project creation

[pronvis]

When create a project test with tarantoolapp create test in directory test we have 2 files with same content:

• test.lua
• init.lua

Expected behavior: test.lua is a symlink to init.lua

Info about system:

System Version: macOS 10.13.5 (17F77)
Kernel Version: Darwin 17.6.0