Bug 1348068 - Enable the key-spacing rule for eslint and fix the related issues. r=standard8

Running eslint with --fix didn't fix many of the issues. The majority here had to be fixed by hand but a significant majority of the issues were related to a few files that I was able to use find-and-replace with. I regret not making this in to separate commits of the hand-fixes and the fixes from --fix but I don't recall --fix fixing any of the issues.

MozReview-Commit-ID: ANyg2qfo3Qx

toolkit/content/contentAreaUtils.js

@@ -459,13 +459,13 @@ function internalSave(aURL, aDocument, aDefaultFileName, aContentDisposition,
 
     var persistArgs = {
       sourceURI,
-      sourceReferrer    : aReferrer,
-      sourceDocument    : useSaveDocument ? aDocument : null,
-      targetContentType : (saveAsType == kSaveAsType_Text) ? "text/plain" : null,
-      targetFile        : file,
-      sourceCacheKey    : aCacheKey,
-      sourcePostData    : nonCPOWDocument ? getPostData(aDocument) : null,
-      bypassCache       : aShouldBypassCache,
+      sourceReferrer: aReferrer,
+      sourceDocument: useSaveDocument ? aDocument : null,
+      targetContentType: (saveAsType == kSaveAsType_Text) ? "text/plain" : null,
+      targetFile: file,
+      sourceCacheKey: aCacheKey,
+      sourcePostData: nonCPOWDocument ? getPostData(aDocument) : null,
+      bypassCache: aShouldBypassCache,
       isPrivate,
     };