[MacPorts] #64447: install-dependencies has more error output than necessary

[MacPorts]

#64447: install-dependencies has more error output than necessary
---------------------------+---------------------
 Reporter:  ryandesign     |      Owner:  admin@…
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  buildbot/mpbb  |    Version:
 Keywords:                 |       Port:
---------------------------+---------------------
 There seems to be some superfluous error messaging appearing from install-
 dependencies:

 https://build.macports.org/builders/ports-
 12_arm64-builder/builds/38762/steps/install-dependencies/logs/stdio
 {{{
 Error: Cannot install pure for the arch 'arm64' because
 Error: its dependency llvm-3.4 only supports the archs 'ppc ppc64 i386
 x86_64'.
 Error: Failed to locate 'lzma' in path:
 '/opt/local/bin:/opt/local/sbin:/opt/bblocal/libexec/libarchive:/bin:/sbin:/usr/bin:/usr/sbin'
 or at its MacPorts configuration time location, did you move it?
     while executing
 "error "$eMessage or at its MacPorts configuration time location, did you
 move it?""
     invoked from within
 "try -pass_signal {
             return [macports::binaryInPath $prog]
         } catch {{*} eCode eMessage} {
             error "$eMessage or at its Mac..."
     (procedure "macports::findBinary" line 5)
 Error: mportdepends pure-glpk activate failed: 1
 Processing dependencies for 'pure-glpk' failed, aborting.
 ./mpbb/mpbb: error: `install-dependencies' failed to run successfully
 }}}

 The messages about `lzma` being missing seem to be unnecessary, unrelated
 to what the real problem was.

-- 
Ticket URL: <https://trac.macports.org/ticket/64447>
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