RULE-21-9: Simplify alert message, remove stdlib.h

Author: lcartey

c/misra/src/rules/RULE-21-9/BsearchAndQsortOfStdlibhUsed.ql

@@ -21,4 +21,4 @@ where
   f = fc.getTarget() and
   f.getName() = ["qsort", "bsearch"] and
   f.getFile().getBaseName() = "stdlib.h"
-select fc, "Call to banned function $@.", f, f.getName()
+select fc, "Call to banned function " + f.getName() + "."

c/misra/test/rules/RULE-21-9/BsearchAndQsortOfStdlibhUsed.expected

@@ -1,2 +1,2 @@
-| test.c:22:3:22:7 | call to qsort | Call to banned function $@. | stdlib.h:56:6:56:10 | qsort | qsort |
-| test.c:26:9:26:15 | call to bsearch | Call to banned function $@. | stdlib.h:55:7:55:13 | bsearch | bsearch |
+| test.c:22:3:22:7 | call to qsort | Call to banned function qsort. |
+| test.c:26:9:26:15 | call to bsearch | Call to banned function bsearch. |

c/misra/test/rules/RULE-21-9/stdlib.h

@@ -1,5 +1,5 @@
-#include "stdlib.h"
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #define size_of_months (sizeof(months) / sizeof(months[0]))