Merge branch 'pb/userdiff-fortran-update'

The regexp to identify the function boundary for FORTRAN programs
has been updated.

* pb/userdiff-fortran-update:
  userdiff: improve Fortran xfuncname regex
  userdiff: add tests for Fortran xfuncname regex

Author: gitster

t/t4018/fortran-block-data

@@ -0,0 +1,5 @@
+       BLOCK DATA RIGHT
+       
+       COMMON /B/ C, ChangeMe
+       DATA C, ChangeMe  / 2.0, 6.0 / 
+       END 

t/t4018/fortran-comment

@@ -0,0 +1,13 @@
+      module a
+
+      contains
+
+      ! subroutine wrong
+      subroutine RIGHT
+      ! subroutine wrong
+
+      real ChangeMe
+
+      end subroutine RIGHT
+
+      end module a

t/t4018/fortran-comment-keyword

@@ -0,0 +1,14 @@
+      module a
+
+      contains
+
+      subroutine RIGHT (funcA, funcB)
+
+      real funcA  ! grid function a
+      real funcB  ! grid function b
+
+      real ChangeMe
+
+      end subroutine RIGHT
+
+      end module a

t/t4018/fortran-comment-legacy

@@ -0,0 +1,13 @@
+      module a
+
+      contains
+
+C subroutine wrong
+      subroutine RIGHT
+C subroutine wrong
+
+      real ChangeMe
+
+      end subroutine RIGHT
+
+      end module a

t/t4018/fortran-comment-legacy-star

@@ -0,0 +1,13 @@
+      module a
+
+      contains
+
+* subroutine wrong
+      subroutine RIGHT
+* subroutine wrong
+
+      real ChangeMe
+
+      end subroutine RIGHT
+
+      end module a

t/t4018/fortran-external-function

@@ -0,0 +1,9 @@
+function RIGHT(a, b) result(c)
+
+integer, intent(in) :: ChangeMe
+integer, intent(in) :: b
+integer, intent(out) :: c
+
+c = a+b
+
+end function RIGHT

t/t4018/fortran-external-subroutine

@@ -0,0 +1,5 @@
+subroutine RIGHT
+
+real ChangeMe
+
+end subroutine RIGHT

t/t4018/fortran-module

@@ -0,0 +1,5 @@
+module RIGHT
+
+use ChangeMe
+
+end module RIGHT

t/t4018/fortran-module-procedure

@@ -0,0 +1,13 @@
+ module RIGHT
+
+   implicit none
+   private
+
+   interface letters  ! generic interface
+      module procedure aaaa, &
+                       bbbb, &
+                       ChangeMe, &
+                       dddd
+   end interface
+   
+end module RIGHT

t/t4018/fortran-program

@@ -0,0 +1,5 @@
+program RIGHT
+
+call ChangeMe
+
+end program RIGHT