graph: minor change to histogram buckets input field

public/app/plugins/panel/graph/axes_editor.html

@@ -39,10 +39,10 @@
 
 	<div class="section gf-form-group">
 		<h5 class="section-heading">X-Axis</h5>
-		<gf-form-switch class="gf-form" label="Show" label-class="width-5" checked="ctrl.panel.xaxis.show" on-change="ctrl.render()"></gf-form-switch>
+		<gf-form-switch class="gf-form" label="Show" label-class="width-6" checked="ctrl.panel.xaxis.show" on-change="ctrl.render()"></gf-form-switch>
 
 		<div class="gf-form">
-			<label class="gf-form-label width-5">Mode</label>
+			<label class="gf-form-label width-6">Mode</label>
 			<div class="gf-form-select-wrapper max-width-15">
 				<select class="gf-form-input" ng-model="ctrl.panel.xaxis.mode" ng-options="v as k for (k, v) in ctrl.xAxisModes" ng-change="ctrl.xAxisOptionChanged()"> </select>
 			</div>
@@ -50,26 +50,26 @@
 
     <!-- Table mode -->
 		<div class="gf-form" ng-if="ctrl.panel.xaxis.mode === 'field'">
-			<label class="gf-form-label width-5">Name</label>
+			<label class="gf-form-label width-6">Name</label>
       <metric-segment-model property="ctrl.panel.xaxis.name" get-options="ctrl.getDataFieldNames(false)" on-change="ctrl.xAxisOptionChanged()" custom="false" css-class="width-10" select-mode="true"></metric-segment-model>
 		</div>
 
     <!-- Series mode -->
 		<div class="gf-form" ng-if="ctrl.panel.xaxis.mode === 'field'">
-			<label class="gf-form-label width-5">Value</label>
+			<label class="gf-form-label width-6">Value</label>
       <metric-segment-model property="ctrl.panel.xaxis.values[0]" get-options="ctrl.getDataFieldNames(true)" on-change="ctrl.xAxisOptionChanged()" custom="false" css-class="width-10" select-mode="true"></metric-segment-model>
 		</div>
 
 		<!-- Series mode -->
 		<div class="gf-form" ng-if="ctrl.panel.xaxis.mode === 'series'">
-			<label class="gf-form-label width-5">Value</label>
+			<label class="gf-form-label width-6">Value</label>
       <metric-segment-model property="ctrl.panel.xaxis.values[0]" options="ctrl.xAxisStatOptions" on-change="ctrl.xAxisOptionChanged()" custom="false" css-class="width-10" select-mode="true"></metric-segment-model>
 		</div>
 
 		<!-- Histogram mode -->
 		<div class="gf-form" ng-if="ctrl.panel.xaxis.mode === 'histogram'">
-			<label class="gf-form-label width-5">Bars</label>
-			<input type="number" class="gf-form-input max-width-8" ng-model="ctrl.panel.xaxis.buckets" placeholder="auto" ng-change="ctrl.render()" ng-model-onblur>
+			<label class="gf-form-label width-6">Buckets</label>
+			<input type="number" class="gf-form-input max-width-8" ng-model="ctrl.panel.xaxis.buckets" placeholder="auto" ng-change="ctrl.render()" ng-model-onblur bs-tooltip="'Number of buckets'" data-placement="right">
 		</div>
 
 	</div>