Fix typo in munmap_partial.rs

addres -> address

src/tools/miri/tests/fail-dep/shims/munmap_partial.rs

@@ -1,5 +1,5 @@
 //! The man pages for mmap/munmap suggest that it is possible to partly unmap a previously-mapped
-//! region of addres space, but to LLVM that would be partial deallocation, which LLVM does not
+//! region of address space, but to LLVM that would be partial deallocation, which LLVM does not
 //! support. So even though the man pages say this sort of use is possible, we must report UB.
 //@ignore-target-windows: No libc on Windows
 //@normalize-stderr-test: "size [0-9]+ and alignment" -> "size SIZE and alignment"