Good point, no real reason to split. The single-string form is closer to the original minus the -e bug, smaller diff, and equally portable: POSIX printf expands \n in the format string on every shell. Split-into-args was defensive against embedded escapes in shell strings, but printf handles \n itself in the format string, so there is nothing to defend against. Reworked in patchset 3:

    printf '/*\n\n   DO NOT EDIT THIS FILE!\n   THIS IS OVERWRITTEN DURING BUILD\n   This is an automatic copy of <osmocom/mgcp/mgcp_common.h>\n\n */\n' > mgcp_common.h

Byte-identical output to patchset 2 and to what a working `echo -e` would have produced: 7 lines, 7 newlines, 132 bytes, same sha256. Verified with diff, and by running the recipe line through bash, dash, ksh and zsh.

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