commit bash-20200825 snapshot

tests/RUN-ONE-TEST

@@ -1,4 +1,4 @@
-BUILD_DIR=/usr/local/build/chet/bash/bash-current
+BUILD_DIR=/usr/local/build/bash/bash-current
 THIS_SH=$BUILD_DIR/bash
 PATH=$PATH:$BUILD_DIR
 

tests/history.right

@@ -241,5 +241,26 @@ c
 d
 echo d
 d
-11	 # other out-of-range behavior for future work
-12	 fc -l 498 502
+a
+b
+c
+d
+e
+f
+4	 echo d
+5	 echo e
+6	 echo f
+out of range 1
+6	 echo f
+7	 fc -l
+8	 echo out of range 1
+out of range 2
+8	 echo out of range 1
+9	 fc -l 502 498
+10	 echo out of range 2
+out of range 3
+10	 echo out of range 2
+11	 fc -l 498 502
+12	 echo out of range 3
+out of range 4
+13	 fc -l 1 99

tests/history5.sub

@@ -14,7 +14,7 @@
 
 trap 'rm -f $HISTFILE' 0 1 2 3 6 15
 
-HISTFILE=$TMPDIR/foohist-$$
+HISTFILE=$TMPDIR/fchist-$$
 unset HISTIGNORE HISTCONTROL
 set -o history
 
@@ -33,6 +33,23 @@ fc -l -0
 echo d
 fc -s 0
 
-# other out-of-range behavior for future work
-fc -l 498 502
+HISTSIZE=4
+history -c
+
+echo a
+echo b
+echo c
+echo d
+echo e
+echo f
+fc -l
+
+echo out of range 1
 fc -l 502 498
+echo out of range 2
+fc -l 498 502
+echo out of range 3
+fc -l 1 99
+# other out-of-range behavior for future work
+echo out of range 4
+fc -l -20 -40