py: Shorten error messages by using contractions and some rewording.
diff --git a/py/objcomplex.c b/py/objcomplex.c
index 409d656..42b396d 100644
--- a/py/objcomplex.c
+++ b/py/objcomplex.c
@@ -195,13 +195,13 @@
         }
         case MP_BINARY_OP_FLOOR_DIVIDE:
         case MP_BINARY_OP_INPLACE_FLOOR_DIVIDE:
-            mp_raise_TypeError("can't do truncated division of a complex number");
+            mp_raise_TypeError("can't truncate-divide a complex number");
 
         case MP_BINARY_OP_TRUE_DIVIDE:
         case MP_BINARY_OP_INPLACE_TRUE_DIVIDE:
             if (rhs_imag == 0) {
                 if (rhs_real == 0) {
-                    mp_raise_msg(&mp_type_ZeroDivisionError, "complex division by zero");
+                    mp_raise_msg(&mp_type_ZeroDivisionError, "complex divide by zero");
                 }
                 lhs_real /= rhs_real;
                 lhs_imag /= rhs_real;