[WP] (libstfinv): remove additional line breaks

The usage text strings already contain a terminal newline.

src/libs/libstfinv/stfinvbase.cc

@@ -212,7 +212,7 @@ namespace stfinv {
 
   void STFBaseEngine::classhelp(std::ostream& os) 
   {
-    os << stfinvbase_summary_usage << std::endl;
+    os << stfinvbase_summary_usage;
   } // void STFBaseEngine::classhelp(std::ostream& os)
 
   /*----------------------------------------------------------------------*/
@@ -226,7 +226,7 @@ namespace stfinv {
 
   void STFBaseEngine::classusage(std::ostream& os) 
   {
-    os << stfinvbase_description_usage << std::endl;
+    os << stfinvbase_description_usage;
   } // void STFBaseEngine::classusage(std::ostream& os)
 
   /*----------------------------------------------------------------------*/

src/libs/libstfinv/stfinvfdleastsquares.cc

@@ -90,7 +90,7 @@ namespace stfinv {
 
   void STFEngineFDLeastSquares::classhelp(std::ostream& os)
   {
-    os << stfinvfdleastsquares_summary_usage << std::endl;
+    os << stfinvfdleastsquares_summary_usage;
     os << std::endl;
     stfinv::tools::report_engine_ID<STFEngineFDLeastSquares>(os);
   } // void STFEngineFDLeastSquares::classhelp(std::ostream& os)
@@ -99,7 +99,7 @@ namespace stfinv {
 
   void STFEngineFDLeastSquares::classusage(std::ostream& os)
   {
-    os << stfinvfdleastsquares_description_usage << std::endl;
+    os << stfinvfdleastsquares_description_usage;
     os << std::endl;
     stfinv::tools::report_engine_ID<STFEngineFDLeastSquares>(os);
     os << std::endl;

src/libs/libstfinv/stfinvfourier.cc

@@ -127,7 +127,7 @@ namespace stfinv {
    */
   void STFFourierDomainEngine::classhelp(std::ostream& os)
   {
-    os << stfinvfourier_summary_usage << std::endl;
+    os << stfinvfourier_summary_usage;
   } // void STFFourierDomainEngine::classhelp(std::ostream& os)
 
   /*----------------------------------------------------------------------*/
@@ -139,7 +139,7 @@ namespace stfinv {
    */
   void STFFourierDomainEngine::classusage(std::ostream& os)
   {
-    os << stfinvfourier_description_usage << std::endl;
+    os << stfinvfourier_description_usage;
     os << std::endl;
     Tbase::classusage(os);
   } // void STFFourierDomainEngine::classusage(std::ostream& os)

src/libs/libstfinv/stfinvidentity.cc

@@ -126,7 +126,7 @@ namespace stfinv {
 
   void STFEngineIdentity::classhelp(std::ostream& os)
   {
-    os << stfinvidentity_summary_usage << std::endl;
+    os << stfinvidentity_summary_usage;
     os << std::endl;
     stfinv::tools::report_engine_ID<STFEngineIdentity>(os);
   } // void STFEngineIdentity::classhelp(std::ostream& os)
@@ -135,7 +135,7 @@ namespace stfinv {
 
   void STFEngineIdentity::classusage(std::ostream& os)
   {
-    os << stfinvidentity_description_usage << std::endl;
+    os << stfinvidentity_description_usage;
     os << std::endl;
     stfinv::tools::report_engine_ID<STFEngineIdentity>(os);
     os << std::endl;