more robust glslc checks, increase default denoise str

Makefile

@@ -698,7 +698,8 @@ else
 	@echo 'Now rebuilding vulkan shaders for Linux...'
 	@chmod +x vulkan-shaders-gen glslc-linux
 	@echo 'Checking if bundled glslc-linux binary is usable...'
-	@GLSLC_BIN=$$(if ./glslc-linux --version >/dev/null 2>&1; then \
+	@GLSLC_BIN=$$( \
+		if [ -x ./glslc-linux ] && ./glslc-linux --version 2>/dev/null | grep -q "glslang"; then \
 			echo "./glslc-linux"; \
 		elif command -v glslc >/dev/null 2>&1; then \
 			echo "glslc"; \

koboldcpp.py

@@ -2117,7 +2117,7 @@ def transform_genparams(genparams, api_format):
                             # note: message string already contains the instruct start tag!
                             temp_poll = {
                                 "prompt": f"{messages_string}\n\nTool List:\n{tools_string}\n\n{custom_tools_prompt}{user_end}",
-                                "max_length":4,
+                                "max_length":6,
                                 "temperature":0.1,
                                 "top_k":1,
                                 "rep_pen":1,