loplugin:stringconstant: Flag more inefficiencies

Change-Id: I45fcbcdf15134585443e528e8af2c9486d0b3bbe

unotools/source/config/bootstrap.cxx

@@ -199,7 +199,7 @@ bool implNormalizeURL(OUString & _sURL, osl::DirectoryItem& aDirItem)
 
     // #109863# sal/osl returns final slash for file URLs contradicting
     // the URL/URI RFCs.
-    if ( !aNormalizedURL.endsWith(OUString(cURLSeparator)) )
+    if ( !aNormalizedURL.endsWith(OUStringLiteral1<cURLSeparator>()) )
         _sURL = aNormalizedURL;
     else
         _sURL = aNormalizedURL.copy( 0, aNormalizedURL.getLength()-1 );
@@ -312,7 +312,7 @@ PathStatus getDerivedPath(
     // do we have a base path ?
     if (!_aBaseURL.isEmpty())
     {
-        OSL_PRECOND(!_aBaseURL.endsWith(OUString(cURLSeparator)), "Unexpected: base URL ends in slash");
+        OSL_PRECOND(!_aBaseURL.endsWith(OUStringLiteral1<cURLSeparator>()), "Unexpected: base URL ends in slash");
 
         sDerivedURL = OUStringBuffer(_aBaseURL).append(cURLSeparator).append(_sRelativeURL).makeStringAndClear();
 

unotools/source/config/dynamicmenuoptions.cxx

@@ -59,7 +59,7 @@ using namespace ::com::sun::star::beans;
 #define OFFSET_IMAGEIDENTIFIER                          2
 #define OFFSET_TARGETNAME                               3
 
-#define PATHPREFIX_SETUP                                OUString("m")
+#define PATHPREFIX_SETUP                                "m"
 
 /*-****************************************************************************************************************
     @descr  struct to hold information about one menu entry.

unotools/source/config/pathoptions.cxx

@@ -58,8 +58,8 @@ using namespace com::sun::star::util;
 using namespace com::sun::star::lang;
 
 #define SEARCHPATH_DELIMITER  ';'
-#define SIGN_STARTVARIABLE    OUString( "$("  )
-#define SIGN_ENDVARIABLE      OUString( ")" )
+#define SIGN_STARTVARIABLE    "$("
+#define SIGN_ENDVARIABLE      ")"
 
 // Supported variables by the old SvtPathOptions implementation
 #define SUBSTITUTE_INSTPATH   "$(instpath)"