Update obligation level of new CERT-C rules

Author: MichaelRFairhurst

rules.csv

@@ -515,7 +515,7 @@ c,CERT-C,ERR30-C,Yes,Rule,,,Take care when reading errno,M19-3-1,Contracts4,Hard
 c,CERT-C,ERR32-C,Yes,Rule,,,Do not rely on indeterminate values of errno,,Contracts5,Hard,
 c,CERT-C,ERR33-C,Yes,Rule,,,Detect and handle standard library errors,MEM52-CPP,Contracts5,Hard,
 c,CERT-C,ERR34-C,OutOfScope,Rule,,,Detect errors when converting a string to a number,,,,
-c,CERT-C,EXP16-C,Yes,Rule,,,Do not compare function pointers to constant values,,Expressions2,Medium,
+c,CERT-C,EXP16-C,Yes,Recommendation,,,Do not compare function pointers to constant values,,Expressions2,Medium,
 c,CERT-C,EXP30-C,Yes,Rule,,,Do not depend on the order of evaluation for side effects,EXP50-CPP,SideEffects1,Easy,
 c,CERT-C,EXP32-C,Yes,Rule,,,Do not access a volatile object through a nonvolatile reference,,Pointers3,Easy,
 c,CERT-C,EXP33-C,Yes,Rule,,,Do not read uninitialized memory,EXP53-CPP,InvalidMemory1,Import,
@@ -531,8 +531,8 @@ c,CERT-C,EXP44-C,Yes,Rule,,,"Do not rely on side effects in operands to sizeof,
 c,CERT-C,EXP45-C,Yes,Rule,,,Do not perform assignments in selection statements,M6-2-1,SideEffects1,Medium,
 c,CERT-C,EXP46-C,Yes,Rule,,,Do not use a bitwise operator with a Boolean-like operand,,Expressions,Easy,
 c,CERT-C,EXP47-C,OutOfScope,Rule,,,Do not call va_arg with an argument of the incorrect type,,,,
-c,CERT-C,FIO03-C,Yes,Rule,,,Do not make assumptions about fopen() and file creation,,IO5,Hard,
-c,CERT-C,FIO21-C,Yes,Rule,,,Do not create temporary files in shared directories,,IO5,Easy,
+c,CERT-C,FIO03-C,Yes,Recommendation,,,Do not make assumptions about fopen() and file creation,,IO5,Hard,
+c,CERT-C,FIO21-C,Yes,Recommendation,,,Do not create temporary files in shared directories,,IO5,Easy,
 c,CERT-C,FIO30-C,Yes,Rule,,,Exclude user input from format strings,A27-0-1,IO1,Import,
 c,CERT-C,FIO32-C,Yes,Rule,,,Do not perform operations on devices that are only appropriate for files,,IO3,Medium,
 c,CERT-C,FIO34-C,Yes,Rule,,,Distinguish between characters read from a file and EOF or WEOF,,IO1,Hard,