Fix tooltip.

Fixes https://gitlab.com/kicad/code/kicad/issues/10708

eeschema/dialogs/dialog_lib_new_symbol_base.cpp

@@ -69,7 +69,7 @@ DIALOG_LIB_NEW_SYMBOL_BASE::DIALOG_LIB_NEW_SYMBOL_BASE( wxWindow* parent, wxWind
 	bSizer17 = new wxBoxSizer( wxVERTICAL );
 
 	m_checkUnitsInterchangeable = new wxCheckBox( this, wxID_ANY, _("All units are interchangeable"), wxDefaultPosition, wxDefaultSize, 0 );
-	m_checkUnitsInterchangeable->SetToolTip( _("Check this option to allow symbols with multiple units to have different\nelements.  Uncheck this option when all symbol units are identical except\nfor pin numbers.") );
+	m_checkUnitsInterchangeable->SetToolTip( _("Check this option when all symbol units are identical except\nfor pin numbers.") );
 
 	bSizer17->Add( m_checkUnitsInterchangeable, 0, wxRIGHT|wxLEFT, 5 );
 

eeschema/dialogs/dialog_lib_new_symbol_base.fbp

@@ -648,7 +648,7 @@
                                         <property name="style"></property>
                                         <property name="subclass"></property>
                                         <property name="toolbar_pane">0</property>
-                                        <property name="tooltip">Check this option to allow symbols with multiple units to have different&#x0A;elements.  Uncheck this option when all symbol units are identical except&#x0A;for pin numbers.</property>
+                                        <property name="tooltip">Check this option when all symbol units are identical except&#x0A;for pin numbers.</property>
                                         <property name="validator_data_type"></property>
                                         <property name="validator_style">wxFILTER_NONE</property>
                                         <property name="validator_type">wxDefaultValidator</property>