Linux: Fix case of test file.

Test/spv.shiftOps.frag

@@ -0,0 +1,19 @@
+#version 450
+
+uniform int   i1;
+uniform uint  u1;
+
+uniform ivec3 i3;
+uniform uvec3 u3;
+
+out ivec3 icolor;
+out uvec3 ucolor;
+
+void main()
+{
+    icolor = i3 << u1;
+    icolor <<= 4u;
+
+    ucolor = u3 >> i1;
+    ucolor >>= 5;
+}