[llvm] [llvm-objcopy] Check for missing argument values (PR #70710)

[Alexander Shaposhnikov via llvm-commits]

================
@@ -0,0 +1,4 @@
+## An error must be reported if a required argument value is missing.
+# RUN: not llvm-objcopy --only-section 2>&1 | FileCheck --check-prefix=CHECK-NO-VALUE %s
----------------
alexander-shaposhnikov wrote:

nit: since at the moment there is only one check prefix in the entire test you can simply use the default one (CHECK)

https://github.com/llvm/llvm-project/pull/70710