This fixes an issue reported to me by Robert, who was running
got add patches/patch-* in the ports tree and saw pointless errors.

ok?

-----------------------------------------------
 make 'got add' more forgiving about unversioned paths on the command line
 
 When users run 'got add *' the shell may pick up already versioned files
 and trigger errors about paths being in an unexpected status. Expand the
 check which previously only allowed files in added status to be double-added
 to cover the following status codes which are all safe to ignore: A M C m
 This should make bulk additions of files a bit easier in most cases.
 
 Problem reported by robert@
 
diff 9fc9df27559545b0cacca46fc6d8db711fdcaf41 f239f9cab93df2194dffc45336375966f58ba9bc
commit - 9fc9df27559545b0cacca46fc6d8db711fdcaf41
commit + f239f9cab93df2194dffc45336375966f58ba9bc
blob - ee5ecec15b1c9954ab672ace7b9165717723b7d2
blob + 8122fe9273cc37091dc13c83016ef03a2a436be5
--- got/got.1
+++ got/got.1
@@ -1412,6 +1412,25 @@ The options for
 .Cm got status
 ignore pattern will not be added.
 .Pp
+If a
+.Ar path
+mentioned in the command line is not an unversioned file then
+.Cm got add
+may raise an error.
+To avoid unnecessary errors from paths picked up by file globbing patterns
+in the shell, paths in the argument list will be silently ignored if they
+are not reported by
+.Cm got status
+at all, or if they are reported with one of the following status codes
+and do not have changes staged via
+.Cm got stage :
+.Bl -column YXZ description
+.It M Ta modified file
+.It A Ta file scheduled for addition in next commit
+.It C Ta modified or added file which contains merge conflicts
+.It m Ta modified file modes (executable bit only)
+.El
+.Pp
 The options for
 .Cm got add
 are as follows:
blob - 95e2e6bfa46ac12fd077b083c122ade77e54106f
blob + 158ecdaac43d28f8eb32bc6f3acf1cfda482fcaf
--- lib/worktree.c
+++ lib/worktree.c
@@ -4197,6 +4197,16 @@ static const struct got_error *
 	struct got_repository *repo;
 };
 
+static int
+add_noop_status(unsigned char status)
+{
+	return (status == GOT_STATUS_ADD ||
+	    status == GOT_STATUS_MODIFY ||
+	    status == GOT_STATUS_CONFLICT ||
+	    status == GOT_STATUS_MODE_CHANGE ||
+	    status == GOT_STATUS_NO_CHANGE);
+}
+
 static const struct got_error *
 schedule_addition(void *arg, unsigned char status, unsigned char staged_status,
     const char *relpath, struct got_object_id *blob_id,
@@ -4220,7 +4230,8 @@ schedule_addition(void *arg, unsigned char status, uns
 		if (err)
 			goto done;
 		/* Re-adding an existing entry is a no-op. */
-		if (status == GOT_STATUS_ADD)
+		if (staged_status == GOT_STATUS_NO_CHANGE &&
+		    add_noop_status(status))
 			goto done;
 		err = got_error_path(relpath, GOT_ERR_FILE_STATUS);
 		if (err)
@@ -4253,7 +4264,7 @@ done:
 	free(ondisk_path);
 	if (err)
 		return err;
-	if (status == GOT_STATUS_ADD)
+	if (staged_status == GOT_STATUS_NO_CHANGE && add_noop_status(status))
 		return NULL;
 	return (*a->progress_cb)(a->progress_arg, GOT_STATUS_ADD, relpath);
 }
blob - eabde9c24df6b9d72582040315ce0f913a98716c
blob + 230e87510d8cfc3bfd45d3bbfc058b91d0a05e6e
--- regress/cmdline/add.sh
+++ regress/cmdline/add.sh
@@ -120,6 +120,7 @@ test_add_multiple() {
 		return 1
 	fi
 
+	echo "changed file" > $testroot/wt/alpha
 	echo "new file" > $testroot/wt/bax
 	(cd $testroot/wt && got add -R * > $testroot/stdout)
 	ret=$?