Fix missing binaries' extensions in "nimble dump"

Fixes #941

src/nimble.nim

@@ -917,7 +917,7 @@ proc dump(options: Options) =
   fn "installFiles", p.installFiles
   fn "installExt", p.installExt
   fn "requires", p.requires
-  fn "bin", toSeq(p.bin.values)
+  fn "bin", p.bin.keys.toSeq
   fn "binDir", p.binDir
   fn "srcDir", p.srcDir
   fn "backend", p.backend

tests/issue941/config.nims

@@ -0,0 +1 @@
+switch("app", "lib")

tests/issue941/issue941.nimble

@@ -0,0 +1,16 @@
+# Package
+
+version       = "0.1.0"
+author        = "Ivan Bobev"
+description   = "A new awesome nimble package"
+license       = "MIT"
+srcDir        = "src"
+
+bin = @[projectName()]
+
+import std/os
+for name in bin:
+  namedBin[name] = name.toDll()
+
+# Dependencies
+requires "nim >= 1.5.1"

tests/issue941/src/issue941.nim

@@ -0,0 +1,7 @@
+# This is just an example to get you started. A typical library package
+# exports the main API in this file. Note that you cannot rename this file
+# but you can remove it if you wish.
+
+proc add*(x, y: int): int =
+  ## Adds two files together.
+  return x + y

tests/tissues.nim

@@ -390,3 +390,27 @@ suite "issues":
       let lines = output.strip.processOutput()
       check exitCode != QuitSuccess
       check inLines(lines, "Nothing to build")
+
+  test "issue #941 (add binaries' extensions in nimble dump command)":
+    cd "issue941":
+      let (output, exitCode) = execNimble("dump")
+      check exitCode == QuitSuccess
+      const expectedOutput = """
+name: "issue941"
+version: "0.1.0"
+author: "Ivan Bobev"
+desc: "A new awesome nimble package"
+license: "MIT"
+skipDirs: ""
+skipFiles: ""
+skipExt: "nim"
+installDirs: ""
+installFiles: ""
+installExt: ""
+requires: "nim >= 1.5.1"
+bin: "libissue941.so"
+binDir: ""
+srcDir: "src"
+backend: "c"
+"""
+      check output == expectedOutput