leap: Fix canonical-data.json formatting

Author: catb0t

exercises/leap/canonical-data.json

@@ -4,31 +4,30 @@
   "comments": [
     "Given a Gregorian calendar year, indicate whether it is a leap year."
   ],
-
   "cases": [
     {
-       "description": "year not divisible by 4: common year",
-       "property": "notLeap",
-       "input": 2015,
-       "expected": false
+      "description": "year not divisible by 4: common year",
+      "property": "notLeap",
+      "input": 2015,
+      "expected": false
     },
     {
-       "description": "year divisible by 4, not divisible by 100: leap year",
-       "property": "isLeap",
-       "input": 2016,
-       "expected": true
+      "description": "year divisible by 4, not divisible by 100: leap year",
+      "property": "isLeap",
+      "input": 2016,
+      "expected": true
     },
     {
-       "description": "year divisible by 100, not divisible by 400: common year",
-       "property": "notLeap",
-       "input": 2100,
-       "expected": false
+      "description": "year divisible by 100, not divisible by 400: common year",
+      "property": "notLeap",
+      "input": 2100,
+      "expected": false
     },
     {
-       "description": "year divisible by 400: leap year",
-       "property": "isLeap",
-       "input": 2000,
-       "expected": true
+      "description": "year divisible by 400: leap year",
+      "property": "isLeap",
+      "input": 2000,
+      "expected": true
     }
   ]
 }