SearchResultSet: MW version number should be a string in wfDeprecated call

SearchResultSet: MW version number should be a string in wfDeprecated call

Seems this was a typo and I think 1.32 which is a double/float will be
implicitly converted to true (bool) because it will resolve 1.32 to 1 as
integer and then 1 which maps to true (bool).

To avoid this, use '1.32' instead of the integer form of the version.

Change-Id: Ifaf6ab0d36bc02bd1707f8caf375f65a30eb1af5