Fix one variant of the ArgumentOutOfRangeException issues

[daxian-dbw]

Fix #919

This is one variant of the many ArgumentOutOfRangeException issues.
For this particular issue, the exception happens in one of the 3 conditions:

1. Resize the windows, so the cursor appears in the next line (1 issue)
2. Prompt string gets longer, and cause the cursor to appear in the next line. (3+ issues)
3. Prompt function is changed and the new prompt string is too short. (3+ issues)

The fix is simple, just don't change the color of the prompt in those cases.

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Issue #932 is an instance caused by changing the prompt function to produce a very short string: $.
Issue #849 is another instance caused by changing the prompt function to produce an extra new line at the end of the prompt message.
Issue #843 is another instance caused by changing the prompt function to produce extra new lines at the end of the prompt message.

I believe issue #863 happens because after cd into a nested folder, the prompt string is long enough to result in a wrapped line.
I believe issue #875 is also because cd results in a longer prompt string that gets wrapped into the next line.
Issue #843 also has a report about a long prompt causing the cursor to appear in its own line (line was wrapped).

Issue #786 is an instance where the cursor appears in its own line because of window resizing.

[daxian-dbw]

@lzybkr The change has been update to wrap back to the previous line. Please take another look and let me know your concerns.