Modify scrypt kernel message.
diff --git a/driver-opencl.c b/driver-opencl.c
index 5d622cc..a1fef8b 100644
--- a/driver-opencl.c
+++ b/driver-opencl.c
@@ -229,7 +229,7 @@ char *set_kernel(char *arg)
char *nextptr;
if (opt_scrypt)
- return "Cannot use sha256 kernel with scrypt";
+ return "Cannot specify a kernel with scrypt";
nextptr = strtok(arg, ",");
if (nextptr == NULL)
return "Invalid parameters for set kernel";