cleanup

- fix possible crash in conc (but it's still an ugly hack)
- fix noob usage of strcmp
- flag some memory leaks (it would be nice, if the author(s) would clean
   up the mess himself)
- fix crash in substr
- whitespace cleanup

there are plenty more memory leaks in command.cpp - for example, every
goto in cubescript does not clean up anything

source/src/serverfiles.h

@@ -905,7 +905,7 @@ struct killmessagesfile : serverconfigfile
         {
             l = p; p += strlen(p) + 1;
             l = strtok(l, sep);
-            
+
             char *message;
             if(l)
             {
@@ -916,7 +916,7 @@ struct killmessagesfile : serverconfigfile
                 {
                     int errors = 0;
                     int gun = atoi(s);
-                    
+
                     s += strlen(s) + 1;
                     while(s[0] == ' ') s++;
                     int hasquotes = strspn(s, "\"");
@@ -931,7 +931,7 @@ struct killmessagesfile : serverconfigfile
                         if(end) break;
                     }
                     if(end) message[end-message] = '\0';
-                    
+
                     if(gun < 0 || gun >= NUMGUNS)
                     {
                         logline(ACLOG_INFO, " error in line %i, invalid gun : %i", line, gun);