related: change for lost 'PROCPS_' enumerator prefixes

With this patch we've completed a progression toward a
standard approach to naming conventions which follows:

* Only functions will begin with that 'procps_' prefix
. ........................................... examples
. procps_vmstat_get ()
. procps_diskstats_select ()
- ----------------------------------------------------

* Exposed structures begin with the module/header name
. ........................................... examples
. struct pids_info
. struct stat_reaped
- ----------------------------------------------------

* Item enumerators begin like structs, but capitalized
. ........................................... examples
. VMSTAT_COMPACT_FAIL
. MEMINFO_DELTA_ACTIVE

[ slabinfo varies slightly due to some item variants ]
. SLABINFO_extra
. SLABS_SIZE_ACTIVE
. SLABNODE_OBJS_PER_SLAB
[ could cure with a prefix of SLABINFO, but too long ]
- ----------------------------------------------------

* Other enumerators work exactly like item enumerators
. ........................................... examples
. PIDS_SORT_ASCEND
. STAT_REAP_CPUS_AND_NODES
- ----------------------------------------------------

* Macros and constants begin just like the enumerators
. ........................................... examples
. #define SLABINFO_GET
. #define DISKSTATS_TYPE_DISK
- ----------------------------------------------------

Signed-off-by: Jim Warner <james.warner@comcast.net>

ps/common.h

@@ -34,13 +34,13 @@
 
 /* a 'results stack value' extractor macro
    where: E=rel enum, T=data type, S=stack */
-#define rSv(E,T,S) PROCPS_PIDS_VAL(rel_ ## E, T, S)
+#define rSv(E,T,S) PIDS_VAL(rel_ ## E, T, S)
 
 #define namREL(e) rel_ ## e
 #define makEXT(e) extern int namREL(e);
 #define makREL(e) int namREL(e) = -1;
 #define chkREL(e) if (namREL(e) < 0) { \
-      Pids_items[Pids_index] = PROCPS_PIDS_ ## e; \
+      Pids_items[Pids_index] = PIDS_ ## e; \
       namREL(e) = (Pids_index < PIDSITEMS) ? Pids_index++ : rel_noop; }
 
 #define setREL1(e) { \