Update datafusion/spark/src/function/math/negative.rs

Co-authored-by: Martin Grigorov <martin-g@users.noreply.github.com>

Author: SubhamSinghal

datafusion/spark/src/function/math/negative.rs

@@ -274,7 +274,7 @@ fn spark_negative(args: &[ColumnarValue]) -> Result<ColumnarValue> {
                 })),
             )),
 
-            dt => not_impl_err!("Not supported datatype for Spark NEGATIVE: {dt}"),
+            dt => not_impl_err!("Not supported datatype for Spark negative(): {dt}"),
         },
     }
 }