Fix commented out error handling
Oops. Had commented it out so I could attach a debugger without exiting on EINTR.
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							@ -145,7 +145,7 @@ static char *prompt(const char *prompt) {
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		fflush(stdout);
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							fflush(stdout);
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		ssize_t len = getline(&line, &cap, stdin);
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							ssize_t len = getline(&line, &cap, stdin);
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		//if (ferror(stdin)) err(EX_IOERR, "getline");
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							if (ferror(stdin)) err(EX_IOERR, "getline");
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		if (feof(stdin)) exit(EX_OK);
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							if (feof(stdin)) exit(EX_OK);
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		if (len < 2) continue;
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							if (len < 2) continue;
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