patchelf --replace-needed forgets to modify .gnu.version_r section about patchelf

[langeseb]

The same issue is also true for --remove-needed option.
I wonder, if the same fix could also be used in that case.
Further: the fix replaces the lib within the gnu.version_r section, but leaves the meta info/comment/description line untouched, e.g.:
0x0000 Version 1 File: libReplaced.so Cnt: 1
0x0010 Name: [OLDLIBNAME] Flags: [OLDFLAGS] Version: [OLDVERSION]

[njsmith]

(sorry, fat-fingered that and submitted the new issue before writing it. Have now edited the original issue to actually describe what's happening)

[njsmith]

CC: @rmcgibbo @matthew-brett @ogrisel

It looks like the .gnu.version_r section is very simple: http://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/symversion.html#SYMVERRQMTS

there's a start towards fixing this here: master...njsmith:master

just missing the core logic, and also it's probably totally broken because it was written in an hour starting from knowing nothing about ELF or patchelf internals and has never even been compiled :-) but that's how far I managed to get today so figured I'd make it public

[njsmith]

The branch above now seems to work... probably still need to add a test case, though

[njsmith]

PR: #85