ext_texture_storage: Fix memory leak on error path
Fix defects reported by Coverity Scan.
Resource leak (RESOURCE_LEAK) leaked_storage: Variable name going out of scope leaks the storage it points to. leaked_storage: Variable opt going out of scope leaks the storage it points to.
Fixes: cc1e4d67 ("Add GL_EXT_texture_storage tests") Signed-off-by: Vinson Lee vlee@freedesktop.org