[gnumeric] Fixed typo in strings

[Daniel Mustieles García <dmustieles src gnome org>]

commit b23d4ad79a8dda647e7cc53abaacb0e80ffb029b
Author: Daniel Mustieles <daniel mustieles gmail com>
Date:   Mon Jul 1 09:45:26 2013 +0200

    Fixed typo in strings

 plugins/fn-stat/functions.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/plugins/fn-stat/functions.c b/plugins/fn-stat/functions.c
index 9dce2dd..340d0b1 100644
--- a/plugins/fn-stat/functions.c
+++ b/plugins/fn-stat/functions.c
@@ -413,7 +413,7 @@ static GnmFuncHelp const help_negbinomdist[] = {
        { GNM_FUNC_HELP_ARG, F_("p:probability of a success")},
        { GNM_FUNC_HELP_NOTE, F_("If @{f} or @{t} is a non-integer it is truncated.")},
        { GNM_FUNC_HELP_NOTE, F_("If (@{f} + @{t} -1) <= 0 this function returns a #NUM! error.")},
-       { GNM_FUNC_HELP_NOTE, F_("If @{p} < 0 or @{p} > 1 this functions returns a #NUM! error.")},
+       { GNM_FUNC_HELP_NOTE, F_("If @{p} < 0 or @{p} > 1 these functions returns a #NUM! error.")},
        { GNM_FUNC_HELP_EXCEL, F_("This function is Excel compatible.") },
        { GNM_FUNC_HELP_EXAMPLES, "=NEGBINOMDIST(2,5,0.55)" },
        { GNM_FUNC_HELP_SEEALSO, "BINOMDIST,COMBIN,FACT,HYPGEOMDIST,PERMUT"},
@@ -1329,7 +1329,7 @@ static GnmFuncHelp const help_tinv[] = {
        { GNM_FUNC_HELP_NAME, F_("TINV:two tailed inverse of the Student t-distribution")},
        { GNM_FUNC_HELP_ARG, F_("p:probability in both tails")},
        { GNM_FUNC_HELP_ARG, F_("dof:number of degrees of freedom")},
-       { GNM_FUNC_HELP_DESCRIPTION, F_("This functions returns the non-negative value x such that the "
+       { GNM_FUNC_HELP_DESCRIPTION, F_("These functions returns the non-negative value x such that the "
                                        "area under the Student t density with @{dof} degrees of freedom "
                                        "to the right of x is @{p}/2.") },
        { GNM_FUNC_HELP_NOTE, F_("If @{p} < 0 or @{p} > 1 or @{dof} < 1 this function returns a #NUM! 
error.")},