etc/scripts/util/test/cases/empty_separators.properties

compilers=a::b
compilers=::a:b
compilers=a:b::
compilers=::
compilers=::a
compilers=a::
compilers=:a
compilers=a:
compilers=a:b
compilers=a

compiler.a.exe=/dev/null
compiler.b.exe=/dev/null