Adjust magic bolding in api help to only match lines inside *

list=logevents&leaction has param values with *, which gets bold, when
there was two of them in the same line.

Bug: 61834
Change-Id: Idace9afd4f3a2dce9be539b209a02fa318df8f45
Merge "Adjust magic bolding in api help to only match lines inside *"