http: htreq_redirect returns error, not boolean
http: htreq_redirect returns error, not boolean

And thus the return code should not be the result of a conditional
expression.

Change-Id: I8c4aa856f19bc3e79220a57724b3e57df72ca236
Reviewed-on: http://review.couchbase.org/46791
Reviewed-by: Subhashni Balakrishnan <7129c8e37b832c7bd362ff375532d24b98ef5162@gmail.com>
Tested-by: Mark Nunberg <dab05a0fe859c5cb93882b2a75a0d613501b07be@couchbase.com>

avsej/libcouchbase,senthilkumaranb/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,PureSwift/libcouchbase,PureSwift/libcouchbase,senthilkumaranb/libcouchbase,kojiromike/libcouchbase,mody/libcouchbase,maxim-ky/libcouchbase,avsej/libcouchbase,signmotion/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,senthilkumaranb/libcouchbase,avsej/libcouchbase,mody/libcouchbase,kojiromike/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,PureSwift/libcouchbase,kojiromike/libcouchbase,PureSwift/libcouchbase,maxim-ky/libcouchbase,maxim-ky/libcouchbase,mody/libcouchbase,mody/libcouchbase,signmotion/libcouchbase,couchbase/libcouchbase,senthilkumaranb/libcouchbase,signmotion/libcouchbase,kojiromike/libcouchbase,maxim-ky/libcouchbase,signmotion/libcouchbase