Enable curly and block-spacing eslint rules

modules/ui/intro/helper.js

@@ -49,7 +49,8 @@ var helpStringReplacements;
 // with custom `replacements`
 export function helpHtml(id, replacements) {
     // only load these the first time
-    if (!helpStringReplacements) helpStringReplacements = {
+    if (!helpStringReplacements) {
+        helpStringReplacements = {
         // insert icons corresponding to various UI elements
         point_icon: icon('#iD-icon-point', 'inline'),
         line_icon: icon('#iD-icon-line', 'inline'),
@@ -144,7 +145,8 @@ export function helpHtml(id, replacements) {
         start_the_walkthrough: t.html('splash.walkthrough'),
         help: t.html('help.title'),
         ok: t.html('intro.ok')
-    };
+        };
+    }
 
     var reps;
     if (replacements) {
@@ -255,10 +257,11 @@ export function selectMenuItem(context, operation) {
 
 export function transitionTime(point1, point2) {
     var distance = geoSphericalDistance(point1, point2);
-    if (distance === 0)
+    if (distance === 0) {
         return 0;
-    else if (distance < 80)
+    } else if (distance < 80) {
         return 500;
-    else
+    } else {
         return 1000;
+    }
 }

modules/ui/intro/line.js

@@ -211,12 +211,13 @@ export function uiIntroLine(context, reveal) {
         reveal('.surface', continueLineText);
 
         context.on('enter.intro', function(mode) {
-            if (mode.id === 'draw-line')
+            if (mode.id === 'draw-line') {
                 return;
-            else if (mode.id === 'select')
+            } else if (mode.id === 'select') {
                 return continueTo(chooseCategoryRoad);
-            else
+            } else {
                 return chapter.restart();
+            }
         });
 
         function continueTo(nextStep) {