Fix wording in exception handling
Fix wording in exception handling

An exception should be thrown when exceptions option is set to true, not false.
checat/guzzle,jeskew/guzzle,kkopachev/guzzle,WebSeed/guzzle,Rinat-wc/guzzle,grokify/guzzle,guzzle/guzzle,stea4lth/guzzle,hussainweb/guzzle,cenxun/guzzle,phlogisticfugu/guzzle,mrm/guzzle,thinsoldier/guzzle,Briareos/guzzle,dshafik/guzzle,stefanruijsenaars/guzzle,hussainweb/guzzle,Tobion/guzzle,Rinat-wc/guzzle,chengky/guzzle,justincy/guzzle,nazo/guzzle,thinsoldier/guzzle,phlogisticfugu/guzzle,atrauzzi/guzzle,Tony133/guzzle,mikicaivosevic/guzzle,lahmizzar/guzzle,rajaehtesham/guzzle,javierTerry/guzzle,grokify/guzzle,mustafavelioglu/guzzle,mortenhauberg/guzzle,ehough/guzzle,guzzle/guzzle,ehough/guzzle,Naktibalda/guzzle,BostjanOb/guzzle,cenxun/guzzle,wherefortravel/guzzle,dshafik/guzzle,videni/guzzle,stea4lth/guzzle,michabbb-backup/guzzle,duyhuynhngoc/guzzle,duyhuynhngoc/guzzle,EdgarPE/guzzle,nazo/guzzle,jeskew/guzzle,sulfo/guzzle,rajaehtesham/guzzle,wherefortravel/guzzle,Tony133/guzzle,mikicaivosevic/guzzle,dawehner/guzzle,BostjanOb/guzzle,atrauzzi/guzzle,videni/guzzle,justincy/guzzle,vrkansagara/guzzle,Briareos/guzzle,staylor/guzzle,mustafavelioglu/guzzle,Tobion/guzzle,michabbb-backup/guzzle,mortenhauberg/guzzle,Naktibalda/guzzle,chengky/guzzle,WebSeed/guzzle,vrkansagara/guzzle,Brunty/guzzle,kkopachev/guzzle,stefanruijsenaars/guzzle,dawehner/guzzle,paveljanda/guzzle,sahat/guzzle,EdgarPE/guzzle,mubassirhayat/guzzle,mrm/guzzle,staylor/guzzle,dawehner/guzzle,javierTerry/guzzle,lahmizzar/guzzle,checat/guzzle,sulfo/guzzle,paveljanda/guzzle,Brunty/guzzle