[FS#551] leftover printf's in the new opkg (since Feb 20)

[LEDE Bugs]

The following task has a new comment added:

FS#551 - leftover printf's in the new opkg (since Feb 20)
User who did this - Jo-Philipp Wich (jow-)

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Thank you for the report; I removed the bad printf() with https://git.lede-project.org/9e4555f.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=551#comment1958