Fix a memory leak in grep

[trix_juniper.net]

Summary

savedir.c savedir When the realloc of the variable name_space fails, free the memory assigned to name_space before returning

Test Plan

Run clang's static analyzer, scan-build, to reproduce the problem. After, run scan-build again to verify the resolution.

[ache]

See BSDism reallocf(3) instead, it does free() automatically.

[trix_juniper.net]

Yes I am aware of the bsd-ism.
Generally it isn¹t a good idea to use ism¹s.
In this case the problem is in grep which is gnu, and not bsd.
Tom

[ache]

Ah, it is gnu one. Sorry I don't check first. Thats OK.