Usage style sweep: spell "usage" with a small 'u'.

Also change one case of blatant __progname abuse (several more remain)
This commit does not touch anything in src/{contrib,crypto,gnu}/.

3 files changed, 3 insertions, 3 deletions

diff --git a/tools/diag/localeck/localeck.c b/tools/diag/localeck/localeck.c
index b638f00..4ce7e45 100644
--- a/tools/diag/localeck/localeck.c
+++ b/tools/diag/localeck/localeck.c
@@ -54,7 +54,7 @@ main(int argc, char *argv[])
 	const char *localename;
 
 	if (argc != 2) {
-		(void)fprintf(stderr, "Usage: localeck <locale_name>\n");
+		(void)fprintf(stderr, "usage: localeck <locale_name>\n");
 		exit(1);
 	}
 
diff --git a/tools/regression/geom/ConfCmp/ConfCmp.c b/tools/regression/geom/ConfCmp/ConfCmp.c
index e224db9..dd129ba 100644
--- a/tools/regression/geom/ConfCmp/ConfCmp.c
+++ b/tools/regression/geom/ConfCmp/ConfCmp.c
@@ -308,7 +308,7 @@ main(int argc, char **argv)
 	setbuf(stdout, NULL);
 	setbuf(stderr, NULL);
 	if (argc != 3)
-		errx(1, "Usage: %s file1 file2", argv[0]);
+		errx(1, "usage: %s file1 file2", argv[0]);
 
 	t1 = dofile(argv[1]);
 	if (t1 == NULL)
diff --git a/tools/regression/p1003_1b/yield.c b/tools/regression/p1003_1b/yield.c
index b664513..ac31a99 100644
--- a/tools/regression/p1003_1b/yield.c
+++ b/tools/regression/p1003_1b/yield.c
@@ -82,7 +82,7 @@ int yield(int argc, char *argv[])
 		n = nslaves = 10;
 
 	else if (argc != 2) {
-		fprintf(stderr, "Usage: prog [n_instances]\n");
+		fprintf(stderr, "usage: prog [n_instances]\n");
 		exit(-1);
 	}
 	else