c++: Add closing namespace comment

[clang-tidy] Found with google-readability-namespace-comments

Signed-off-by: Rosen Penev <rosenp@gmail.com>
diff --git a/src/Array.cpp b/src/Array.cpp
index d5d9d7c..4f34e58 100644
--- a/src/Array.cpp
+++ b/src/Array.cpp
@@ -145,4 +145,4 @@
     return std::distance (_array.begin(), it);
 }
 
-};
+}  // namespace PList
diff --git a/src/Boolean.cpp b/src/Boolean.cpp
index 4608eaf..35f2a57 100644
--- a/src/Boolean.cpp
+++ b/src/Boolean.cpp
@@ -70,4 +70,4 @@
     return b != 0 ;
 }
 
-};
+}  // namespace PList
diff --git a/src/Data.cpp b/src/Data.cpp
index 2e93007..11439d3 100644
--- a/src/Data.cpp
+++ b/src/Data.cpp
@@ -76,4 +76,4 @@
 
 
 
-};
+}  // namespace PList
diff --git a/src/Date.cpp b/src/Date.cpp
index 4b5e0a1..87e8a50 100644
--- a/src/Date.cpp
+++ b/src/Date.cpp
@@ -73,4 +73,4 @@
     return t;
 }
 
-};
+}  // namespace PList
diff --git a/src/Dictionary.cpp b/src/Dictionary.cpp
index 59908c6..4fd73ef 100644
--- a/src/Dictionary.cpp
+++ b/src/Dictionary.cpp
@@ -179,4 +179,4 @@
     return "";
 }
 
-};
+}  // namespace PList
diff --git a/src/Integer.cpp b/src/Integer.cpp
index 04315d7..e357f72 100644
--- a/src/Integer.cpp
+++ b/src/Integer.cpp
@@ -70,4 +70,4 @@
     return i;
 }
 
-};
+}  // namespace PList
diff --git a/src/Key.cpp b/src/Key.cpp
index ed0c0c6..2e92f20 100644
--- a/src/Key.cpp
+++ b/src/Key.cpp
@@ -77,4 +77,4 @@
     return ret;
 }
 
-};
+}  // namespace PList
diff --git a/src/Node.cpp b/src/Node.cpp
index 3da401e..51ecd75 100644
--- a/src/Node.cpp
+++ b/src/Node.cpp
@@ -163,4 +163,4 @@
     return ret;
 }
 
-};
+}  // namespace PList
diff --git a/src/Real.cpp b/src/Real.cpp
index ec300c9..4587701 100644
--- a/src/Real.cpp
+++ b/src/Real.cpp
@@ -70,4 +70,4 @@
     return d;
 }
 
-};
+}  // namespace PList
diff --git a/src/String.cpp b/src/String.cpp
index 0965349..7bc3abc 100644
--- a/src/String.cpp
+++ b/src/String.cpp
@@ -77,4 +77,4 @@
     return ret;
 }
 
-};
+}  // namespace PList
diff --git a/src/Structure.cpp b/src/Structure.cpp
index 70150c2..a06618d 100644
--- a/src/Structure.cpp
+++ b/src/Structure.cpp
@@ -119,5 +119,5 @@
 
 }
 
-};
+}  // namespace PList
 
diff --git a/src/Uid.cpp b/src/Uid.cpp
index 440dec4..6456dce 100644
--- a/src/Uid.cpp
+++ b/src/Uid.cpp
@@ -70,4 +70,4 @@
     return i;
 }
 
-};
+}  // namespace PList