rustdoc: update test cases

Width changed by 2/4 pixels by b273c75

Author: notriddle

src/test/rustdoc-gui/search-result-display.goml

@@ -7,11 +7,11 @@ press-key: 'Enter'
 wait-for: "#crate-search"
 // The width is returned by "getComputedStyle" which returns the exact number instead of the
 // CSS rule which is "50%"...
-assert-css: (".search-results div.desc", {"width": "295px"})
+assert-css: (".search-results div.desc", {"width": "293px"})
 size: (600, 100)
 // As counter-intuitive as it may seem, in this width, the width is "100%", which is why
 // when computed it's larger.
-assert-css: (".search-results div.desc", {"width": "570px"})
+assert-css: (".search-results div.desc", {"width": "566px"})
 
 // Check that the crate filter `<select>` is correctly handled when it goes to next line.
 // To do so we need to update the length of one of its `<option>`.