drm/dp: add missing ')' to I2C nack debug message

 "(an unmatched left parenthesis
  creates an unresolved tension
  that will stay with you all day."
               -- Randall Munroe

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180727203331.27778-1-paulo.r.zanoni@intel.com

drivers/gpu/drm/drm_dp_helper.c

@@ -850,7 +850,8 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 			return ret;
 
 		case DP_AUX_I2C_REPLY_NACK:
-			DRM_DEBUG_KMS("I2C nack (result=%d, size=%zu\n", ret, msg->size);
+			DRM_DEBUG_KMS("I2C nack (result=%d, size=%zu)\n",
+				      ret, msg->size);
 			aux->i2c_nack_count++;
 			return -EREMOTEIO;