llvm-objcopy prints wrong path when output directory doesn't exist

[srpape]

When the output directory doesn't exist, llvm-objcopy prints the input argument in the error string.
Tested with llvm-objcopy-19.

Example to reproduce:

# We get permission denied if we try to use /usr/bin/ls directly
$ cp /usr/bin/ls ./ls

# ./invalid-dir does not exist, we get an incorrect error message
$ llvm-objcopy-19 --dump-section .text=./invalid-dir/text ./ls 
llvm-objcopy-19: error: './ls': No such file or directory

# If we create the directory, it will succeed
$ mkdir invalid-dir
$ llvm-objcopy-19 --dump-section .text=./invalid-dir/text ./ls #succeeds

[llvmbot]

@llvm/issue-subscribers-tools-llvm-objcopy-strip

Author: None (srpape)

When the output directory doesn't exist, llvm-objcopy prints the input argument in the error string. Tested with llvm-objcopy-19.

Example to reproduce:

# We get permission denied if we try to use /usr/bin/ls directly
$ cp /usr/bin/ls ./ls

# ./invalid-dir does not exist, we get an incorrect error message
$ llvm-objcopy-19 --dump-section .text=./invalid-dir/text ./ls 
llvm-objcopy-19: error: './ls': No such file or directory

# If we create the directory, it will succeed
$ mkdir invalid-dir
$ llvm-objcopy-19 --dump-section .text=./invalid-dir/text ./ls #succeeds

[AmrDeveloper]

Interested, I will work on it