fixup of rules

Author: jsinglet

rules.csv

@@ -485,17 +485,17 @@ c,CERT-C,ARR36-C,Yes,Rule,,,Do not subtract or compare two pointers that do not
 c,CERT-C,ARR37-C,Yes,Rule,,,Do not add or subtract an integer to a pointer to a non-array object,,InvalidMemory,Medium,
 c,CERT-C,ARR38-C,Yes,Rule,,,Guarantee that library functions do not form invalid pointers,,Pointers2,Very Hard,
 c,CERT-C,ARR39-C,Yes,Rule,,,Do not add or subtract a scaled integer to a pointer,,Pointers2,Medium,
-c,CERT-C,CON30-C,Yes,Rule,,,Clean up thread-specific storage,,Concurrency3,Very Hard,
+c,CERT-C,CON30-C,Yes,Rule,,,Clean up thread-specific storage,,Concurrency4,Very Hard,
 c,CERT-C,CON31-C,Yes,Rule,,,Do not destroy a mutex while it is locked,CON50-CPP,Concurrency3,Very Hard,
 c,CERT-C,CON32-C,Yes,Rule,,,Prevent data races when accessing bit-fields from multiple threads,,Concurrency1,Easy,
 c,CERT-C,CON33-C,Yes,Rule,,,Avoid race conditions when using library functions,,Concurrency1,Easy,
-c,CERT-C,CON34-C,Yes,Rule,,,Declare objects shared between threads with appropriate storage durations,,Concurrency3,Hard,
+c,CERT-C,CON34-C,Yes,Rule,,,Declare objects shared between threads with appropriate storage durations,,Concurrency4,Hard,
 c,CERT-C,CON35-C,Yes,Rule,,,Avoid deadlock by locking in a predefined order,CON53-CPP,Concurrency2,Medium,
 c,CERT-C,CON36-C,Yes,Rule,,,Wrap functions that can spuriously wake up in a loop,CON54-CPP,Concurrency2,Medium,
 c,CERT-C,CON37-C,Yes,Rule,,,Do not call signal() in a multithreaded program,,Concurrency1,Easy,
 c,CERT-C,CON38-C,Yes,Rule,,,Preserve thread safety and liveness when using condition variables,CON55-CPP,Concurrency3,Medium,
-c,CERT-C,CON39-C,Yes,Rule,,,Do not join or detach a thread that was previously joined or detached,,Concurrency3,Hard,
-c,CERT-C,CON40-C,Yes,Rule,,,Do not refer to an atomic variable twice in an expression,,Concurrency3,Medium,
+c,CERT-C,CON39-C,Yes,Rule,,,Do not join or detach a thread that was previously joined or detached,,Concurrency4,Hard,
+c,CERT-C,CON40-C,Yes,Rule,,,Do not refer to an atomic variable twice in an expression,,Concurrency4,Medium,
 c,CERT-C,CON41-C,Yes,Rule,,,Wrap functions that can fail spuriously in a loop,CON53-CPP,Concurrency3,Medium,
 c,CERT-C,CON43-C,OutOfScope,Rule,,,Do not allow data races in multithreaded code,,,,
 c,CERT-C,DCL30-C,Yes,Rule,,,Declare objects with appropriate storage durations,,Declarations,Hard,