Fix execve syscall code in ropchain generator
Closes #170
Fixes a message in the x86_64 chain generator to display the correct syscall.
~~The original issue notes that an incorrect syscall code is displayed. I discovered that an incorrect syscall code is present in the actual chain generator for the x86 version. x86_64 is correct. This pull request fixes both generators' print statements and changes the execve code in the x86 chain generator's gadget creator to the correct 0x3b.~~
Are you sure, that this fix the issue? The changes shows only a change in the message
@sashs Yes, this is right. The rop chain values are already correct. Just the message printed has the improper code.
I also went ahead and also updated the indices used in the generator to be hex-formatted to be more consistent with x86 (non-functional change). You can take or leave that.