[MacPorts] #37970: doxygen: stray "-n"s in configure output

[MacPorts]

#37970: doxygen: stray "-n"s in configure output
--------------------------+---------------------
 Reporter:  ryandesign@…  |      Owner:  css@…
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.1.3
 Keywords:                |       Port:  doxygen
--------------------------+---------------------
 {{{
 DEBUG: Assembled command: 'cd
 "/opt/local/var/macports/build/_Users_rschmidt_macports_dports_textproc_doxygen/doxygen/work/doxygen-1.8.3"
 && ./configure --prefix /opt/local --docdir /opt/local/share/doc --dot
 /opt/local/bin/dot --platform macosx-c++'
 DEBUG: Executing command line:  cd
 "/opt/local/var/macports/build/_Users_rschmidt_macports_dports_textproc_doxygen/doxygen/work/doxygen-1.8.3"
 && ./configure --prefix /opt/local --docdir /opt/local/share/doc --dot
 /opt/local/bin/dot --platform macosx-c++
 -n   Checking for platform macosx-c++...
 supported
 -n   Checking for GNU make tool...
 using /opt/local/bin/gmake
 -n   Checking for GNU install tool...
 using /opt/local/bin/ginstall
 -n   Checking for dot (part of GraphViz)...
 using /opt/local/bin/dot
 -n   Checking for perl...
 using /opt/local/bin/perl
 -n   Checking for flex...
 using /opt/local/bin/flex
 -n   Checking for bison...
 using /opt/local/bin/bison
 }}}

 Configure script should use "printf" instead of "echo -n" for POSIX
 compatibility.

-- 
Ticket URL: <https://trac.macports.org/ticket/37970>
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