Update compileshaders.py

glslangValidator has a capital V in its name. This will make this script work again on unix likes.

Author: deccer

shaders/glsl/compileshaders.py

@@ -19,7 +19,7 @@ def isExe(path):
     if args.glslang != None and isExe(args.glslang):
         return args.glslang
 
-    exe_name = "glslangvalidator"
+    exe_name = "glslangValidator"
     if os.name == "nt":
         exe_name += ".exe"
 
@@ -58,4 +58,4 @@ def isExe(path):
 
             res = subprocess.call("%s -V %s -o %s %s" % (glslang_path, input_file, output_file, add_params), shell=True)
             if res != 0:
-                sys.exit(res)
+                sys.exit(res)