ipcalc: use perl 5.24

[xeron (Ivan Larionov)]

Changes for ipcalc port:

• Use perl5 PortGroup and perl 5.24
• use sha256, drop md5 and sha1
• Consistent tabulation

[dbevans (David B. Evans)]

To make it easier to see what's being changed, it's usually preferable to split an update like this into two separate patches/commits. First a patch to deal with the tabulation issue and then a second to make the other changes.

[xeron (Ivan Larionov)]

@devans ok. Thank you. Uploading 2 separate patches.

[mf2k (Frank Schima)]

Some comments:

• Do you mean to remove the line: supported_archs noarch?
• The line: depends_lib port:perl${perl5.major} can be removed because the perl5 portgroup already adds it.

[xeron (Ivan Larionov)]

@mf2k thank you for comments, I returned supported_archs.

I did not remove depends_lib since port dependents perl5.24 doesn't show ipcalc w/o it so I'm not sure it could be removed.

[mf2k (Frank Schima)]

I see. It must be the perl5.setup command that actually sets that dependency, but you are not using that.

[xeron (Ivan Larionov)]

@mf2k I think I'll keep this variant with depends_lib. I only use perlgroup to get perl5.major variable and looks like perl5.setup is mostly used for perl modules to set ${distfile} and ${version} which I don't need here.

[mf2k (Frank Schima)]

r153291

[xeron (Ivan Larionov)]

Thank you!