Hojun-Cho
2480f4c272
Scan the consolidated .data buffer (post-relocation) for trailing zero bytes; set the R+W PT_LOAD's p_filesz to exclude them while p_memsz covers the full region. The loader zero-fills the gap, so behaviour is unchanged. Saves up to a page per binary on programs whose globals are zero-init. Mirrored in selfhost/cmd/w6l/out.ww so test 992's byte-identity diff still holds. Dynamic-link path is untouched — it still errors on any mutable global; that's the next feature.