remove instances of group nobody in favor of group root

manifests/install.pp

@@ -56,7 +56,7 @@ class matlab::install(      # $namevar matlab release version
   file { "${vardir}/MATHWORKS-${name}.iso":
     ensure  => present,
     owner   => root,
-    group   => nobody,
+    group   => root,
     mode    => '0600',    # u=rw,go=
     backup  => false,  # don't backup to filebucket!
     source  => $iso,
@@ -84,7 +84,7 @@ class matlab::install(      # $namevar matlab release version
   file { "${vardir}/installer_input.txt.${name}":
     ensure  => present,
     owner   => root,
-    group   => nobody,
+    group   => root,
     mode    => '0600',  # u=rw,go=r
     require => Mount["matlab_mount.${name}"],
     content => template('matlab/installer_input.txt.erb'),
@@ -116,7 +116,7 @@ class matlab::install(      # $namevar matlab release version
   file { "${install_destination}/licenses/license.lic":
     ensure  => present,
     owner   => root,
-    group   => nobody,
+    group   => root,
     # TODO: is there a worry that someone will steal the license ?
     mode    => '0644',    # u=rw,g=r,o=r
     source  => $licensefile,