h2load: Fix doc and remove trailing spaces

src/h2load.cc

@@ -635,12 +635,12 @@ Options:
   -i, --input-file=<FILE>
                      Path of  a file with multiple  URIs are seperated
                      by EOLs.   This option will disable  URIs getting
-                     from stdin. URIs are used  in this order for each
-                     client.   All URIs  are used,  then first  URI is
-                     used and  then 2nd URI,  and so on.   The scheme,
-                     host and port in the subsequent URIs, if present,
-                     are  ignored.  Those  in the  first URI  are used
-                     solely.
+                     from command-line.   URIs are used in  this order
+                     for each  client.  All URIs are  used, then first
+                     URI is  used and  then 2nd URI,  and so  on.  The
+                     scheme, host and port  in the subsequent URIs, if
+                     present, are ignored.  Those in the first URI are
+                     used solely.
   -m, --max-concurrent-streams=(auto|<N>)
                      Max concurrent streams to  issue per session.  If
                      "auto"  is given,  the  number of  given URIs  is
@@ -927,7 +927,7 @@ int main(int argc, char **argv)
     }
   } else {
     if(uri_file.is_open()) {
-      //load rest uris from file 
+      // load rest uris from file
       while(std::getline (uri_file, line_uri)) {
         auto uri = (char *)line_uri.c_str();