Eliminated a warning

Author: neoneye

Example/ScrollableStackView/Base.lproj/Main.storyboard

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11762" systemVersion="16C67" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="bXc-Pm-PMg">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12118" systemVersion="16E195" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="bXc-Pm-PMg">
     <device id="retina5_5" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11757"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12086"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -17,11 +17,11 @@
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                         <prototypes>
-                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" selectionStyle="default" indentationWidth="10" id="bUr-eS-XDZ">
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" selectionStyle="default" indentationWidth="10" reuseIdentifier="CellIdentifier" id="bUr-eS-XDZ">
                                 <rect key="frame" x="0.0" y="28" width="414" height="44"/>
                                 <autoresizingMask key="autoresizingMask"/>
                                 <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" tableViewCell="bUr-eS-XDZ" id="R13-Wp-JUw">
-                                    <rect key="frame" x="0.0" y="0.0" width="414" height="44"/>
+                                    <rect key="frame" x="0.0" y="0.0" width="414" height="43.5"/>
                                     <autoresizingMask key="autoresizingMask"/>
                                 </tableViewCellContentView>
                             </tableViewCell>