[sledge] Fix generation of sledge-help.txt

Summary: Previous changes to the build system broke this.

Reviewed By: jvillard

Differential Revision: D24859021

fbshipit-source-id: afca228b8

sledge/dune

@@ -132,8 +132,7 @@
 
 (rule
  (targets sledge-help.txt)
- (deps cli/sledge_cli.ml cli/sledge_buck.ml tools/gen_help.sh
-   cli/sledge_cli.exe)
+ (deps tools/gen_help.sh cli/sledge_cli.exe)
  (action
   (with-stdout-to
    sledge-help.txt

sledge/tools/gen_help.sh

@@ -5,7 +5,7 @@
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
 
-sledge=$(dirname $PWD)/install/$(basename $PWD)/bin/sledge
+sledge=$PWD/cli/sledge_cli.exe
 
 line=$(\
   $sledge help -recursive -expand \
@@ -14,12 +14,12 @@ line=$(\
 
 line=$(($line+1))
 
-$sledge help -recursive
+$sledge help -recursive | sed -e "s/sledge_cli.exe/sledge/g"
 
 $sledge h -r -e \
   | tail -n +$line \
   | sed -e "/^$/d;s/  \(.*\)  .*/\1/g" \
   | while read cmd; do \
       printf "\n====== sledge $cmd ======\n\n"; \
-      $sledge $cmd -help; \
+      $sledge $cmd -help | sed -e "s/sledge_cli.exe/sledge/g"; \
     done