Renumber newly added flags to avoid a conflict in 19.05.

These conflict with JOB_MEM_SET/JOB_RESIZED in 19.05. Since 19.05rc1
has shipped - but no 18.08 maintenance releases have shipped with these
new flags - it is safer to renumber them here to avoid the merge conflict
going into 19.05.

Bug 6064.

slurm/slurm.h.in

@@ -1043,10 +1043,11 @@ enum ctx_keys {
 #define JOB_WAS_RUNNING    0x00100000  /* Job was running */
 #define RESET_ACCRUE_TIME  0x00200000   /* Reset the job's accrue time */
 #define INVALID_DEPEND     0x00400000	/* Job has invalid dependency(ies). */
-#define USE_DEFAULT_ACCT   0x00800000	/* Job submitted to default account */
-#define USE_DEFAULT_PART   0x01000000	/* Job submitted to default partition */
-#define USE_DEFAULT_QOS    0x02000000	/* Job submitted with default QOS */
-#define USE_DEFAULT_WCKEY  0x04000000	/* Job submitted with default WCKEY */
+/* GAP FOR TWO NEW 19.05 FLAGS */
+#define USE_DEFAULT_ACCT   0x02000000	/* Job submitted to default account */
+#define USE_DEFAULT_PART   0x04000000	/* Job submitted to default partition */
+#define USE_DEFAULT_QOS    0x08000000	/* Job submitted with default QOS */
+#define USE_DEFAULT_WCKEY  0x10000000	/* Job submitted with default WCKEY */
 
 #define X11_FORWARD_ALL		0x0001	/* all nodes should setup forward */
 #define X11_FORWARD_BATCH	0x0002  /* only the batch node */