shaNNNsum: accept one-space "HASH FILENAME" format for -c, closes 14866

function                                             old     new   delta
md5_sha1_sum_main                                    496     501      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

testsuite/sha1sum.tests

@@ -1,3 +1,13 @@
 #!/bin/sh
 
+. ./testing.sh
+
+# testing "test name" "cmd" "expected result" "file input" "stdin"
+>EMPTY
+testing "sha1sum: one-space separated input for -c" \
+	'echo "da39a3ee5e6b4b0d3255bfef95601890afd80709 EMPTY" | sha1sum -c' \
+	"EMPTY: OK\n" \
+	"" ""
+rm EMPTY
+
 . ./md5sum.tests sha1sum d41337e834377140ae7f98460d71d908598ef04f