setpriority(2): booleans are not scalars

[Scott Cheloha]

`found' serves as a boolean here.  I'd prefer to simple and set it to
1 instead of incrementing it when we find what we're looking for.

ok?

Index: kern_resource.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_resource.c,v
retrieving revision 1.68
diff -u -p -r1.68 kern_resource.c
--- kern_resource.c     15 Jul 2019 20:44:48 -0000      1.68
+++ kern_resource.c     25 Sep 2020 18:54:34 -0000
@@ -157,7 +157,7 @@ sys_setpriority(struct proc *curp, void 
                if (pr == NULL)
                        break;
                error = donice(curp, pr, SCARG(uap, prio));
-               found++;
+               found = 1;
                break;
 
        case PRIO_PGRP: {
@@ -169,7 +169,7 @@ sys_setpriority(struct proc *curp, void 
                        break;
                LIST_FOREACH(pr, &pg->pg_members, ps_pglist) {
                        error = donice(curp, pr, SCARG(uap, prio));
-                       found++;
+                       found = 1;
                }
                break;
        }
@@ -180,14 +180,14 @@ sys_setpriority(struct proc *curp, void 
                LIST_FOREACH(pr, &allprocess, ps_list)
                        if (pr->ps_ucred->cr_uid == SCARG(uap, who)) {
                                error = donice(curp, pr, SCARG(uap, prio));
-                               found++;
+                               found = 1;
                        }
                break;
 
        default:
                return (EINVAL);
        }
-       if (found == 0)
+       if (!found)
                return (ESRCH);
        return (error);
 }