dscreate ds-root - accepts relative path

[jchapma]

Issue Description
When dscreate ds-root is invoked with a relative path to root_dir, the relative path is written to defaults.inf, causing instance creation failure.

Package Version and Platform:

• Package and version: 389-ds-base-2.3.6

Steps to Reproduce

1. dscreate ds-root test $HOME/bin
2. grep socket test/share/dirsrv/inf/defaults.inf
3. dscreate interactive fails with - Error: Instance creation failed! Failed to start DS

Expected results
Instance is created with no error

Additional context
Reported by @vashirov - https://issues.redhat.com/browse/RHEL-5115

[jchapma]

9e595d4..13f5a6a 389-ds-base-2.5 -> 389-ds-base-2.5
109d4c9..7bdaec0 389-ds-base-2.4 -> 389-ds-base-2.4
d23068d..e10252a 389-ds-base-2.3 -> 389-ds-base-2.3
18a1c6b..51f9ace 389-ds-base-2.2 -> 389-ds-base-2.2
9bc4bb7..e996550 389-ds-base-2.1 -> 389-ds-base-2.1
f4398df..c68add0 389-ds-base-2.0 -> 389-ds-base-2.0