Fixes the build with GCC 6 (in addition to fixing an actual bug).

/wrkdirs/usr/ports/science/massxpert/work/massxpert-3.4.0/lib/propListHolder.cpp: In member function 'bool massXpert::PropListHolder::removeProp(const QString&)':

/wrkdirs/usr/ports/science/massxpert/work/massxpert-3.4.0/lib/propListHolder.cpp:216:2: error: this 'if' clause does not guard... [-Werror=misleading-indentation]

  if(m_propList.at(iter)->name() == name);

  ^~

/wrkdirs/usr/ports/science/massxpert/work/massxpert-3.4.0/lib/propListHolder.cpp:217:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'

  {

--- lib/propListHolder.cpp.orig	2017-07-26 17:06:18 UTC

+++ lib/propListHolder.cpp

@@ -213,7 +213,7 @@ namespace massXpert

   {

     for (int iter = 0; iter < m_propList.size(); ++iter)

       {

-	if(m_propList.at(iter)->name() == name);

+	if(m_propList.at(iter)->name() == name)

 	{

 	  m_propList.removeAt(iter);