Fix some typos

Author: Dagfinn Ilmari Mannsåker
Reviewed-by: Shubham Khanna
Discussion: https://postgr.es/m/87le9fmi01.fsf@wibble.ilmari.org

src/bin/pg_archivecleanup/pg_archivecleanup.c

@@ -265,7 +265,7 @@ usage(void)
 	printf(_("  -n, --dry-run               dry run, show the names of the files that would be\n"
 			 "                              removed\n"));
 	printf(_("  -V, --version               output version information, then exit\n"));
-	printf(_("  -x, --strip-extension=EXT   strip this extention before identifying files for\n"
+	printf(_("  -x, --strip-extension=EXT   strip this extension before identifying files for\n"
 			 "                              clean up\n"));
 	printf(_("  -?, --help                  show this help, then exit\n"));
 	printf(_("\n"

src/interfaces/ecpg/preproc/type.c

@@ -695,7 +695,7 @@ get_dtype(enum ECPGdtype type)
 	switch (type)
 	{
 		case ECPGd_count:
-			return "ECPGd_countr";
+			return "ECPGd_count";
 			break;
 		case ECPGd_data:
 			return "ECPGd_data";

src/tools/ci/ci_macports_packages.sh

@@ -66,7 +66,7 @@ fi
 
 # check if any ports should be uninstalled
 if [ -n "$(port -q installed rleaves)" ] ; then
-    echo superflous packages installed
+    echo superfluous packages installed
     update_cached_image=1
     sudo port uninstall --follow-dependencies rleaves