fixup! filter-repo: update commit-map metadata file instead of overwr…

…iting

t/t9393-rerun.sh

@@ -325,8 +325,8 @@ test_expect_success 'modify a file, then remove a later file' '
 		FILE_D_CHANGE=$(git rev-list -1 HEAD -- fileD) &&
 		ORIGINAL_TAG=$(git rev-parse v1.0) &&
 
-		git filter-repo --force \
-		    --replace-text <(echo "file 3 contents==>Alternate C") &&
+		echo "file 3 contents==>Alternate C" >changes &&
+		git filter-repo --force --replace-text changes &&
 
 		NEW_FILE_C_CHANGE=$(git rev-list -1 HEAD -- fileC) &&
 
@@ -387,8 +387,8 @@ test_expect_success 'modify a file, then remove a later file via --refs' '
 		FILE_D_CHANGE=$(git rev-list -1 HEAD -- fileD) &&
 		ORIGINAL_TAG=$(git rev-parse v1.0) &&
 
-		git filter-repo --force \
-		    --replace-text <(echo "file 2 contents==>Alternate B") &&
+		echo "file 2 contents==>Alternate B" >changes &&
+		git filter-repo --force --replace-text changes &&
 
 		NEW_FILE_B_CHANGE=$(git rev-list -1 HEAD -- fileB) &&
 		NEW_FILE_C_CHANGE=$(git rev-list -1 HEAD -- fileC) &&
@@ -449,8 +449,8 @@ test_expect_success 'modify a file, then remove an earlier file' '
 		FILE_D_CHANGE=$(git rev-list -1 HEAD -- fileD) &&
 		ORIGINAL_TAG=$(git rev-parse v1.0) &&
 
-		git filter-repo --force \
-		    --replace-text <(echo "file 3 contents==>Alternate C") &&
+		echo "file 3 contents==>Alternate C" >changes &&
+		git filter-repo --force --replace-text changes &&
 
 		NEW_FILE_C_CHANGE=$(git rev-list -1 HEAD -- fileC) &&
 
@@ -506,8 +506,9 @@ test_expect_success 'use --refs heavily with a rerun' '
 		FILE_C_CHANGE=$(git rev-list -1 HEAD -- fileC) &&
 		FILE_D_CHANGE=$(git rev-list -1 HEAD -- fileD) &&
 
+		echo "Tweak it==>Modify it" >changes &&
 		git filter-repo --force --refs orphan-me \
-		    --replace-message <(echo "Tweak it==>Modify it") &&
+		    --replace-message changes &&
 
 		NEW_FINAL_ORPHAN=$(git rev-list -1 orphan-me) &&