xargs -i is nonstandard

[gwollman]

include/tests_databases invokes xargs with the nonstandard -i(lower-case i) flag, resulting in an error message to stderr. It should use the standard -I (upper-case I) flag, which requires an argument instead (but might need logic to deal with nonstandard xargs implementations). The GNU xargs manual page claims that -I{} does what the nonstandard -i flag did. I can confirm that this eliminates the error message, but not that it is doing the expected thing.

Version

• 8d9cdb22f413f2b2c941ae4750ca40411ce8a194 (tagged 3.0.8)
• FreeBSD 12.3

Expected behavior xargs should be invoked with valid command-line arguments so it does not write a diagnostic and exit with an error status.

Output

xargs: invalid option -- i
usage: xargs [-0opt] [-E eofstr] [-I replstr [-R replacements] [-S replsize]]
             [-J replstr] [-L number] [-n number [-x]] [-P maxprocs]
             [-s size] [utility [argument ...]]

Additional context Add any other context about the problem here.