CanonLe block has no size element

This is what has been causing corruption in my file writing by reducing
the block from 30 bytes to 28, offsetting subsequent data by two bytes.

Signed-off-by: Jim Easterbrook <jim@jim-easterbrook.me.uk>

src/tiffimage_int.cpp

@@ -167,7 +167,7 @@ constexpr ArrayCfg canonLeCfg = {
     invalidByteOrder,  // Use byte order from parent
     ttUndefined,       // Type for array entry and size element
     notEncrypted,      // Not encrypted
-    true,              // Has a size element
+    false,             // No size element
     false,             // No fillers
     false,             // Don't concatenate gaps
     {0, ttUnsignedByte, 1},