cli: add nomad fmt (#14779)

command/testdata/fmt/job.in.hcl

@@ -0,0 +1,17 @@
+  job    "job1"   {
+  type          = "service"
+  datacenters = [   "dc1"  ]
+  group "group1"   {
+    count = 1
+    task "task1" {
+      driver   = "exec"
+      config   {
+            command = "/bin/sleep"
+      }
+      resources {
+            cpu    = 1000
+          memory = 512
+       }
+}
+}
+}

command/testdata/fmt/job.out.hcl

@@ -0,0 +1,17 @@
+job "job1" {
+  type        = "service"
+  datacenters = ["dc1"]
+  group "group1" {
+    count = 1
+    task "task1" {
+      driver = "exec"
+      config {
+        command = "/bin/sleep"
+      }
+      resources {
+        cpu    = 1000
+        memory = 512
+      }
+    }
+  }
+}

command/testdata/fmt/nomad.in.hcl

@@ -0,0 +1,8 @@
+server {
+  enabled          =    true
+  bootstrap_expect    = 3
+}
+
+consul    {
+  address    = "1.2.3.4:8500"
+}

command/testdata/fmt/nomad.out.hcl

@@ -0,0 +1,8 @@
+server {
+  enabled          = true
+  bootstrap_expect = 3
+}
+
+consul {
+  address = "1.2.3.4:8500"
+}