Receiving and interpreting strings via serial

Danois90:
This code "const PROGMEM char bootNotice[]" means array of char, usually assigned with either of:

const char msg1[] = {'a','b','c','\0'};

const char msg2[] = "abc";




Both the above will yield the same output.

So, if it's multiple sentences like I have, should it be:

const char msg[]= "sentence\n"
"sentence2\n"

or

const char msg[]= "sentence\n sentence2\n"

or even

const char msg[]= "sentence\n
sentence2\n"