[Bug 1245437] [NEW] patch --dry-run creates directories

[Aapo Rantalainen]

Public bug reported:

GNU patch 2.7.1

Steps:
echo "--- /dev/null
+++ first/filename.txt
@@ -0,0 +1,2 @@
+line 1
+line 2" | patch -p0 --dry-run

Expected: 
No modifications on file system
(if expectation is wrong, maybe documentation needs tuning)

Actually happens:  
There are new directory: first

** Affects: patch (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1245437

Title:
  patch --dry-run creates directories

Status in “patch” package in Ubuntu:
  New

Bug description:
  GNU patch 2.7.1

  Steps:
  echo "--- /dev/null
  +++ first/filename.txt
  @@ -0,0 +1,2 @@
  +line 1
  +line 2" | patch -p0 --dry-run

  Expected: 
  No modifications on file system
  (if expectation is wrong, maybe documentation needs tuning)

  Actually happens:  
  There are new directory: first

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