fixed aldehyde angles

Author: richardjgowers

foyer/forcefields/trappe-ua.xml

@@ -97,7 +97,7 @@
   <Angle class1="CHx" class2="CHx" type3="O_eth" angle="1.95477" k="418.21733"/>
   <!-- aldehydes and ketones -->
   <Angle class1="CHx" type2="C_ket" class3="CHx" angle="2.04552" k="519.65389"/>
-  <Angle class1="CHx" class2="CHx_sp2" class3="O_sp2" angle="2.11883" k="519.65389"/>
+  <Angle class1="CHx" class2="CHx" class3="O_sp2" angle="2.11883" k="519.65389"/>
   <!-- alkenes -->
   <!-- C=[C]-C -->
   <Angle class1="CHx_sp2" type2="CH_sp2" class3="CHx" angle="2.08916" k="585.50426"/>