Documentation fixes.

Improve man page explanation of impact of not having external environment variables automatically imported.  Fix cut-and-paste errors in descriptions of AppendENVPath() and Prepend().  Correct the __doc__ string for get_visualstudio_versions().

1 files changed, 5 insertions, 5 deletions

diff --git a/src/engine/SCons/Tool/msvs.py b/src/engine/SCons/Tool/msvs.py
index e03eb8d..90b756c 100644
--- a/src/engine/SCons/Tool/msvs.py
+++ b/src/engine/SCons/Tool/msvs.py
@@ -765,11 +765,11 @@ def get_default_visualstudio_version(env):
 
 def get_visualstudio_versions():
     """
-    Get list of visualstudio versions from the Windows registry.  Return a
-    list of strings containing version numbers; an exception will be raised
-    if we were unable to access the registry (eg. couldn't import
-    a registry-access module) or the appropriate registry keys weren't
-    found.
+    Get list of visualstudio versions from the Windows registry.
+    Returns a list of strings containing version numbers.  An empty list
+    is returned if we were unable to accees the register (for example,
+    we couldn't import the registry-access module) or the appropriate
+    registry keys weren't found.
     """
 
     if not SCons.Util.can_read_reg: