Improve Read Netlist tooltip for footprint assignment.

Fixes: lp:1785200
* https://bugs.launchpad.net/kicad/+bug/1785200

pcbnew/dialogs/dialog_netlist_base.cpp

@@ -44,7 +44,7 @@ DIALOG_NETLIST_BASE::DIALOG_NETLIST_BASE( wxWindow* parent, wxWindowID id, const
 	int m_matchByTimestampNChoices = sizeof( m_matchByTimestampChoices ) / sizeof( wxString );
 	m_matchByTimestamp = new wxRadioBox( this, wxID_ANY, _("Match Method"), wxDefaultPosition, wxDefaultSize, m_matchByTimestampNChoices, m_matchByTimestampChoices, 1, wxRA_SPECIFY_COLS );
 	m_matchByTimestamp->SetSelection( 0 );
-	m_matchByTimestamp->SetToolTip( _("Select how footprints are recognized:\nby their reference (U1, R3...) (normal setting)\nor their time stamp (special setting after a full schematic reannotation)") );
+	m_matchByTimestamp->SetToolTip( _("Select whether to update footprint references to match their currently-assigned symbols, or to re-assign footprints to symbols which match their current references.") );
 	
 	bUpperSizer->Add( m_matchByTimestamp, 1, wxALIGN_TOP|wxEXPAND|wxTOP|wxRIGHT, 5 );
 	

pcbnew/dialogs/dialog_netlist_base.fbp

@@ -436,7 +436,7 @@
                                 <property name="style">wxRA_SPECIFY_COLS</property>
                                 <property name="subclass"></property>
                                 <property name="toolbar_pane">0</property>
-                                <property name="tooltip">Select how footprints are recognized:&#x0A;by their reference (U1, R3...) (normal setting)&#x0A;or their time stamp (special setting after a full schematic reannotation)</property>
+                                <property name="tooltip">Select whether to update footprint references to match their currently-assigned symbols, or to re-assign footprints to symbols which match their current references.</property>
                                 <property name="validator_data_type"></property>
                                 <property name="validator_style">wxFILTER_NONE</property>
                                 <property name="validator_type">wxDefaultValidator</property>