stat.2: Use argument name 'pathname' throughout page

(Some APIs were using 'path' while others used 'pathname')

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man2/stat.2

@@ -48,11 +48,11 @@ stat, fstat, lstat, fstatat \- get file status
 .br
 .B #include <unistd.h>
 .sp
-.BI "int stat(const char *" path ", struct stat *" buf );
+.BI "int stat(const char *" pathname ", struct stat *" buf );
 .br
 .BI "int fstat(int " fd ", struct stat *" buf );
 .br
-.BI "int lstat(const char *" path ", struct stat *" buf );
+.BI "int lstat(const char *" pathname ", struct stat *" buf );
 .sp
 .BR "#include <fcntl.h>           " "/* Definition of AT_* constants */"
 .B #include <sys/stat.h>
@@ -99,14 +99,14 @@ No permissions are required on the file itself, but\(emin the case of
 and
 .BR lstat ()\(emexecute
 (search) permission is required on all of the directories in
-.I path
+.I pathname
 that lead to the file.
 .PP
 .BR stat ()
 and
 .BR fstatat ()
 stat the file pointed to by
-.I path
+.I pathname
 and fills in
 .IR buf ;
 the differences for
@@ -117,7 +117,7 @@ are described below.
 is identical to
 .BR stat (),
 except that if
-.I path
+.I pathname
 is a symbolic link, then the link itself is stat-ed,
 not the file that it refers to.
 
@@ -431,7 +431,7 @@ is set appropriately.
 .B EACCES
 Search permission is denied for one of the directories
 in the path prefix of
-.IR path .
+.IR pathname .
 (See also
 .BR path_resolution (7).)
 .TP
@@ -446,14 +446,14 @@ Bad address.
 Too many symbolic links encountered while traversing the path.
 .TP
 .B ENAMETOOLONG
-.I path
+.I pathname
 is too long.
 .TP
 .B ENOENT
 A component of
-.I path
+.I pathname
 does not exist, or
-.I path
+.I pathname
 is an empty string.
 .TP
 .B ENOMEM
@@ -461,11 +461,11 @@ Out of memory (i.e., kernel memory).
 .TP
 .B ENOTDIR
 A component of the path prefix of
-.I path
+.I pathname
 is not a directory.
 .TP
 .B EOVERFLOW
-.I path
+.I pathname
 or
 .I fd
 refers to a file whose size, inode number,