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e3e7f521 - libintl: Fix pointer use after free and make error handling robuster

libintl: Fix pointer use after free and make error handling robuster Previously, _nl_find_msg had a use of pointer after free'd. Also, some callers of the function didn't check the failure. Merge changes from glibc. Reported by Carlos O'Donell in <https://savannah.gnu.org/bugs/?38930>.