string: added repeat() method and redefined spaces() method to use it

Signed-off-by: James Yonan <[email protected]>

Author: jamesyonan

openvpn/common/string.hpp

@@ -412,16 +412,22 @@ namespace openvpn {
       return ret;
     }
 
-    // generate a string with spaces
-    inline std::string spaces(int n)
+    // generate a string with n instances of char c
+    inline std::string repeat(const char c, int n)
     {
       std::string ret;
       ret.reserve(n);
       while (n-- > 0)
-	ret += ' ';
+	ret += c;
       return ret;
     }
 
+    // generate a string with spaces
+    inline std::string spaces(int n)
+    {
+      return repeat(' ', n);
+    }
+
     // indent a multiline string
     inline std::string indent(const std::string& str, const int first, const int remaining)
     {