annotate-tests: quote variable expansions containing path names

The test case added by 9466e38 ("blame: enable funcname blaming with
userdiff driver", 2020-11-01) forgot to quote variable expansions. This
causes failures when the current directory contains blanks.

One variable that the test case introduces will not have IFS characters
and could remain without quotes, but let's quote all expansions for
consistency, not just the one that has the path name.

Signed-off-by: Johannes Sixt <[email protected]>
Acked-by: Philippe Blain <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: j6t

t/annotate-tests.sh

@@ -483,12 +483,12 @@ test_expect_success 'setup -L :funcname with userdiff driver' '
 	echo "fortran-* diff=fortran" >.gitattributes &&
 	fortran_file=fortran-external-function &&
 	orig_file="$TEST_DIRECTORY/t4018/$fortran_file" &&
-	cp $orig_file . &&
-	git add $fortran_file &&
+	cp "$orig_file" . &&
+	git add "$fortran_file" &&
 	GIT_AUTHOR_NAME="A" GIT_AUTHOR_EMAIL="[email protected]" \
 	git commit -m "add fortran file" &&
-	sed -e "s/ChangeMe/IWasChanged/" <"$orig_file" >$fortran_file &&
-	git add $fortran_file &&
+	sed -e "s/ChangeMe/IWasChanged/" <"$orig_file" >"$fortran_file" &&
+	git add "$fortran_file" &&
 	GIT_AUTHOR_NAME="B" GIT_AUTHOR_EMAIL="[email protected]" \
 	git commit -m "change fortran file"
 '