Fixed Bash script header to dynamically load correct environment.

- Improves loading of the correct Bash environment/version, especially
  on systems that might not be using a standard install (i.e.
  Homebrew), by loading a version of Bash as defined by the environment
  rather than a hard coded path.

[ci skip]

bin/create_boot_disk

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Creates macOS boot disk.

bin/install_dev_tools

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Installs development tooling requirements.

bin/run

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Executes the command line interface.

lib/installers.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines software installer functions.

lib/options.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines command line prompt options.

lib/reinstallers.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines reinstall functions.

lib/restorers.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines software restore functions.

lib/settings.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines global settings.

lib/uninstallers.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines uninstall functions.

lib/utilities.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines general utility functions.

lib/verifiers.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines verification/validation functions.