Update comments in util to be doxygen compatible

src/utilstrencodings.h

@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 /**
@@ -19,7 +19,7 @@
 #define UEND(a)             ((unsigned char*)&((&(a))[1]))
 #define ARRAYLEN(array)     (sizeof(array)/sizeof((array)[0]))
 
-// This is needed because the foreach macro can't get over the comma in pair<t1, t2>
+/** This is needed because the foreach macro can't get over the comma in pair<t1, t2> */
 #define PAIRTYPE(t1, t2)    std::pair<t1, t2>
 
 std::string SanitizeString(const std::string& str);
@@ -45,7 +45,7 @@ int atoi(const std::string& str);
 /**
  * Convert string to signed 32-bit integer with strict parse error feedback.
  * @returns true if the entire string could be parsed as valid integer,
- *   false if not the entire string could be parsed or when overflow or underflow occured.
+ *   false if not the entire string could be parsed or when overflow or underflow occurred.
  */
 bool ParseInt32(const std::string& str, int32_t *out);
 
@@ -74,7 +74,8 @@ inline std::string HexStr(const T& vch, bool fSpaces=false)
     return HexStr(vch.begin(), vch.end(), fSpaces);
 }
 
-/** Format a paragraph of text to a fixed width, adding spaces for
+/** 
+ * Format a paragraph of text to a fixed width, adding spaces for
  * indentation to any added line.
  */
 std::string FormatParagraph(const std::string in, size_t width=79, size_t indent=0);