updated changes and test to only account for leading or trailing whitespace

Author: taikaa

lib/puppet/type/sshkey.rb

@@ -53,7 +53,7 @@ def self.title_patterns
 
     newproperty(:key) do
       desc "The key itself; generally a long string of unencoded characters. The `key`
-        attribute may not contain whitespace.
+        attribute may not contain leading or trailing whitespace.
 
         Make sure to omit the following in this attribute (and specify them in
         other attributes):
@@ -62,7 +62,7 @@ def self.title_patterns
         * Key identifiers / comments, such as 'joescomputer.local' --- put these in
           the `name` attribute/resource title."
       validate do |value|
-        raise Puppet::Error, _('Key must not contain whitespace: %{value}') % { value: value } if %r{\s}.match?(value)
+        raise Puppet::Error, _('Key must contain neither leading nor trailing whitespace: %{value}') % { value: value } if %r{^\s|\s$}.match?(value)
       end
     end
 

spec/unit/type/sshkey_spec.rb

@@ -76,10 +76,10 @@
       }.to raise_error(Puppet::Error, %r{cannot include whitespace})
     end
 
-    it "doesn't accept whitespace in the key contents" do
+    it "doesn't accept leading or trailing whitespace in the key contents" do
       expect {
-        described_class.new(name: 'foo', key: 'AAA FA==')
-      }.to raise_error(Puppet::Error, %r{Key must not contain whitespace})
+        described_class.new(name: 'foo', key: ' AAAFA==')
+      }.to raise_error(Puppet::Error, %r{Key must contain neither leading nor trailing whitespace})
     end
 
     it "doesn't accept aliases in the resourcename" do