updated for version 7.4.234

Problem:    Can't get the command that was used to start Vim.
Solution:   Add v:progpath. (Viktor Kojouharov)

runtime/doc/eval.txt

@@ -1556,6 +1556,12 @@ v:profiling	Normally zero.	Set to one after using ":profile start".
 v:progname	Contains the name (with path removed) with which Vim was
 		invoked.  Allows you to do special initialisations for |view|,
 		|evim| etc., or any other name you might symlink to Vim.
+		Read-only.
+
+					*v:progpath* *progpath-variable*
+v:progpath	Contains the command with which Vim was invoked, including the
+		path.  Useful if you want to message a Vim server using a
+		|--remote-expr|.
 		Read-only.
 
 					*v:register* *register-variable*

src/eval.c

@@ -361,6 +361,7 @@ static struct vimvar
     {VV_NAME("hlsearch",	 VAR_NUMBER), 0},
     {VV_NAME("oldfiles",	 VAR_LIST), 0},
     {VV_NAME("windowid",	 VAR_NUMBER), VV_RO},
+    {VV_NAME("progpath",	 VAR_STRING), VV_RO},
 };
 
 /* shorthand */

src/main.c

@@ -1602,6 +1602,7 @@ parse_command_name(parmp)
 
 #ifdef FEAT_EVAL
     set_vim_var_string(VV_PROGNAME, initstr, -1);
+    set_vim_var_string(VV_PROGPATH, (char_u *)parmp->argv[0], -1);
 #endif
 
     if (TOLOWER_ASC(initstr[0]) == 'r')

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    234,
 /**/
     233,
 /**/

src/vim.h

@@ -1880,7 +1880,8 @@ typedef int proftime_T;	    /* dummy for function prototypes */
 #define VV_HLSEARCH	54
 #define VV_OLDFILES	55
 #define VV_WINDOWID	56
-#define VV_LEN		57	/* number of v: vars */
+#define VV_PROGPATH	57
+#define VV_LEN		58	/* number of v: vars */
 
 #ifdef FEAT_CLIPBOARD