webui: no space around '=' fixed
webui: no space around '=' fixed

Former-commit-id: de7884ddceaaedcca67f67c6694264fcd530536b [formerly 3fd4f374ac36e60575df08be98166431a992d794]
Former-commit-id: 44cbb4ea10bc72d252901d20692f83a0cc4658cc
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine