I don't see the core dump either but the file doesn't open correctly.
>>$ file initgroups.patch2
>>initgroups.patch2: RCS/CVS diff output, ASCII text, with CR line terminators
Your file has a 0Dh line terminator and is probably made on a Apple Macintosh OS 9 or earlier.
The quick fix for anyone who runs into a problem like this is to open the file in a text editor that reads it (gedit/pluma) and save as and there will be an option to choose line ending for Linux/Unix. I'll probe into this and see if there are other bug reports out there.
I don't see the core dump either but the file doesn't open correctly.
>>$ file initgroups.patch2 patch2: RCS/CVS diff output, ASCII text, with CR line terminators
>>initgroups.
Your file has a 0Dh line terminator and is probably made on a Apple Macintosh OS 9 or earlier.
The quick fix for anyone who runs into a problem like this is to open the file in a text editor that reads it (gedit/pluma) and save as and there will be an option to choose line ending for Linux/Unix. I'll probe into this and see if there are other bug reports out there.