Fix cpplint issues

Rconc-create0.cpp:20:  Line ends in whitespace.  Consider deleting these extra spaces.  [whitespace/end_of_line] [4]
Res-always5.cpp:15:  Missing space after ,  [whitespace/comma] [3]
Rp-lib0.cpp:15:  Missing space after ,  [whitespace/comma] [3]
Rs-using-directive0.cpp:25:  Extra space after ( in function call  [whitespace/parens] [4]
Rs-using-directive0.cpp:25:  Extra space before )  [whitespace/parens] [2]

CppCoreGuidelines.md

@@ -1067,7 +1067,7 @@ So, if a suitable library exists for your application domain, use it.
 
 ##### Example
 
-    std::sort(begin(v),end(v),std::greater<>());
+    std::sort(begin(v), end(v), std::greater<>());
 
 Unless you are an expert in sorting algorithms and have plenty of time,
 this is more likely to be correct and to run faster than anything you write for a specific application.
@@ -9105,7 +9105,7 @@ Readability. Minimize resource retention.
 
 Note: C++17 also adds `if` and `switch` initializer statements. These require C++17 support.
 
-    map<int,string> mymap;
+    map<int, string> mymap;
 
     if (auto result = mymap.insert(value); result.second) {
         // insert succeeded, and result is valid for this block
@@ -9508,7 +9508,7 @@ Assuming that there is a logical connection between `i` and `j`, that connection
 
 Obviously, what we really would like is a construct that initialized n variables from a `tuple`. For example:
 
-    auto [i,j] = make_related_widgets(cond);    // C++17, not C++14
+    auto [i, j] = make_related_widgets(cond);    // C++17, not C++14
 
 Today, we might approximate that using `tie()`:
 
@@ -12494,8 +12494,7 @@ Thread creation is expensive.
         // process
     }
 
-    void 
-    (istream& is)
+    void master(istream& is)
     {
         for (Message m; is >> m; )
             run_list.push_back(new thread(worker, m));
@@ -16574,10 +16573,10 @@ Doing so takes away an `#include`r's ability to effectively disambiguate and to
     // user.cpp
     #include "bad.h"
     
-    bool copy( /*... some parameters ...*/);    // some function that happens to be named copy
+    bool copy(/*... some parameters ...*/);    // some function that happens to be named copy
 
     int main() {
-        copy( /*...*/ );    // now overloads local ::copy and std::copy, could be ambiguous
+        copy(/*...*/);    // now overloads local ::copy and std::copy, could be ambiguous
     }
 
 ##### Enforcement