micro does not show ASCII control characters (0x00 to 0x1F)

[jnko]

micro does not show ASCII control characters (0x00 to 0x1F)

I've had a lot of "fun" finding a configuration file syntax error and it turned out that the file contained accidentally an ASCII control character (0x00 to 0x1F) which micro simply ignores to display.

Instead of ignoring those unprintable characters micro should show them like "^CHAR"

0x00  - ^@
0x01  - ^A
0x02  - ^B
...
0x1B  - ^[
0x1C - ^\
0x1D  - ^]
0x1E  - ^^
0x1F  - ^-