Allow dots in the names, bug #95173.  Patch by Kerin Millar.
Re-sourced for 3.4.2

--- a/run-parts.8
+++ b/run-parts.8
@@ -25,9 +25,10 @@
 .IR directory .
 Other files and directories are silently ignored.
 
-If neither the \-\-lsbsysinit option nor the \-\-regex option is given
-then the names must consist entirely of ASCII upper- and lower-case
-letters, ASCII digits, ASCII underscores, and ASCII minus-hyphens.
+If neither the \-\-lsbsysinit option nor the \-\-regex option is given then the
+names must consist entirely of ASCII upper- and lower-case letters, ASCII
+digits, ASCII underscores, and ASCII minus-hyphens. However, the name must not
+begin with a period.
 
 If the \-\-lsbsysinit option is given, then the names must not end
 in .dpkg\-old  or .dpkg\-dist or .dpkg\-new or .dpkg\-tmp, and must
--- a/run-parts.c
+++ b/run-parts.c
@@ -501,7 +501,7 @@
                     != 0)
             pt_regex = &tradre;
 
-    } else if ( (err = regcomp(&classicalre, "^[a-zA-Z0-9_-]+$",
+    } else if ( (err = regcomp(&classicalre, "^[a-zA-Z0-9_-][a-zA-Z0-9._-]+$",
                     REG_EXTENDED | REG_NOSUB)) != 0)
         pt_regex = &classicalre;